Latest / This Week in Yellowstone National Park / This Week in Yellowstone: August 20th to August 26th, 2026
Transcript
- 0:00From Yellowstone National Park where the sage
- 0:02has been smelling amazing in the early morning
- 0:05hours after an evening rain This is that Scott
- 0:08guy you know and love with a brand new episode
- 0:11of this week in Yellowstone What's up everybody
- 0:24this week in Yellowstone National Park from August
- 0:2720th to August 26th 2026, I talk about the dirt
- 0:32road that's found just outside of the park that
- 0:34few people ever drive. I tell you about the history
- 0:37of glaciers in the park and what they left behind,
- 0:40and offer a reminder to leave things where you
- 0:43found them in the park. I'll also give you the
- 0:45complete weather forecast, a cool trail to hike,
- 0:48the wildlife report, and everything else you
- 0:51need to have an incredible time this week in
- 0:53Yellowstone. Standard disclaimer, I may miss
- 0:57a few details here and there. That's just me
- 0:58trying to be a little more brief. I could easily
- 1:01make this podcast two hours every week, but no
- 1:05one wants that. And if you do, maybe I'll launch
- 1:07a Patreon or something and you can hear me ramble
- 1:09for an hour or two a week. But until then, just
- 1:12know that I'm going to miss some details because
- 1:14I'm trying to be brief. Also know that I mentioned
- 1:18park locations very casually. So if you're unfamiliar
- 1:21with anywhere I'm talking about, a quick search
- 1:23can help or you can reach out to. to me directly,
- 1:26you can text me at 406 -589 -1873 or shoot me
- 1:31an email at theoutdoorsocietyatgmail .com. Now
- 1:36I do want to say that those of you that have
- 1:37texted me and emailed me, I'm trying to catch
- 1:39up. It's been a busy last month. So if you messaged
- 1:43me, sent me something, I apologize for not getting
- 1:46to it. Everything just gets stacked up and I
- 1:49do the best I can. So apologies. Please, if it's
- 1:52pressing and coming up, reach out to me again.
- 1:54It's not a personal thing. I do try and respond
- 1:57to every single person that reaches out. So reach
- 1:59back out to me. I'll try and catch up in the
- 2:01next week or so, and I'll do my best. Finally,
- 2:05please know that this podcast is a passion project
- 2:07of mine. If you enjoy it, I'd love a review online
- 2:11at whatever, wherever you listen to it. So if
- 2:14it's like Apple podcasts, review their Spotify,
- 2:16review it there, or just shoot me a quick email.
- 2:19I like getting those. It's really nice every
- 2:22week to get so many wonderful message from all
- 2:25of you listeners because, you know, I'm just
- 2:28recording this in my little studio office and
- 2:30there isn't like anybody here to tell me if I'm
- 2:34rambling or not. I know I'm rambling right now,
- 2:36but I appreciate all of your contact that you've
- 2:40done reaching out to me, telling that you like
- 2:42what I do. So thank you so much. If you want
- 2:44to support me more, you can check out my hiking
- 2:46and wildlife watching guidebooks, or you can
- 2:49join me for a guided hiking tour in Yellowstone's
- 2:51backcountry. For more information and all that,
- 2:53visit outdoor -society .com or contact me directly,
- 2:57again 406 -589 -1873 or theoutdoorsocietyatgmail
- 3:03.com. This week's Yellowstone news. The proposed
- 3:08highway near Yellowstone. If you've been online,
- 3:11you may have seen that there is a proposed interstate
- 3:14that will run from Texas to Montana, and there's
- 3:19a lot of different rumors going around and a
- 3:21lot of worry, and I want to talk about what that
- 3:24proposed highway means to Yellowstone National
- 3:26Park specifically. So here's what I wrote to
- 3:29summarize all of the news about it. A proposed
- 3:31interstate could bring major changes to US 287
- 3:36around the Greater Yellowstone Region, but it
- 3:39will not turn Yellowstone National Park's existing
- 3:42roads into an interstate or automatically widen
- 3:45the roads inside the park. The I -47 Future Interstate
- 3:49Act of 2026 would designate US 287, which runs
- 3:54from Port Arthur, Texas, to Montana, as future
- 3:58Interstate 47. Importantly, US 287 is officially
- 4:03discontinuous through Yellowstone National Park.
- 4:08The roads inside the park are National Park Service
- 4:10roads, not US 287. Again, this could be a new
- 4:16interstate, but it will not be an interstate
- 4:18through Yellowstone National Park. Their proposal
- 4:21could nevertheless have significant implications
- 4:24outside of the park, especially along that Greater
- 4:28Yellowstone ecosystem near West Yellowstone,
- 4:30Madison Valley, and then kind of that southeast
- 4:33side as well. Converting the mostly two -lane
- 4:37highway to an interstate could eventually require
- 4:40substantial improvements depending on how the
- 4:42designation is implemented and what projects
- 4:45are actually funded. The main concern is that
- 4:48the future highway upgrades on the existing two
- 4:50-lane highway to an interstate would increase
- 4:53traffic volumes, increase vehicle speed, and
- 4:57make the physical footprint of the road much
- 4:59higher which would result in fragmenting key
- 5:02habitat, impeding wildlife movement, polluting
- 5:05rivers, and impacting the heritage and rural
- 5:07character of our region. Obviously this is still
- 5:11just out there being floated but there's a lot
- 5:14of talk about it and I wanted to mention it because
- 5:16I've also seen a lot of people saying they're
- 5:18gonna build a four -lane highway through Yellowstone
- 5:21National Park and that is fundamentally not true.
- 5:25Proposal for this interstate does not cover park
- 5:29roads. They would have to change things substantially
- 5:31and That's just not gonna happen. It's The amount
- 5:36of funding the amount of red tape that there's
- 5:38going to be for this it's just not going to happen
- 5:41now the impact of the Greater Yellowstone ecosystem
- 5:43with A highway like this could be huge, especially
- 5:47if they decide not to do wildlife overpasses
- 5:49every mile or two or things like that. That's
- 5:52really going to negatively impact the region.
- 5:55I'll talk about that more as we get there, but
- 5:57I just wanted to mention that I've seen a lot
- 5:58of chatter online and had to address it. One
- 6:02other thing I'm going to talk about in the future,
- 6:04but not this episode because we're still waiting,
- 6:07is the fate of the molly pack. The mollies left
- 6:10Yellowstone a while ago and they are out of the
- 6:13park in Wyoming. And Wyoming is not exactly the
- 6:16best place for wolves to go outside of park protection.
- 6:20I could talk about this again for a long time.
- 6:23I'm not going to right now, but just know that
- 6:25we're still waiting on confirmation if the mollies
- 6:27return to the park or are still out. Right now,
- 6:30it's just a big question mark. My experience
- 6:34of the week. Grassy Lake Road. I often talk about
- 6:37scenic roads in the park tucked away off the
- 6:39main areas. I've also been known to constantly
- 6:42tell people to drive the Beartooth Highway, Chief
- 6:44Joseph, and the road between the east entrance
- 6:47and Cody. I even recommend driving Old Yellowstone
- 6:50Road north of the park. This week, I'm continuing
- 6:53my tradition of telling you to find the roads
- 6:55less traveled while visiting Yellowstone and
- 6:58highlighting the often overlooked Grassy Lake
- 7:00Road. Located just a few miles south of the south
- 7:04entrance between Yellowstone and the Tetons,
- 7:06Grassy Lake Road is a 36 -mile road, 35 of which
- 7:10are dirt and gravel, that connects the John D.
- 7:12Rockefeller Memorial John D. Rockefeller Jr.
- 7:15Memorial Parkway to just outside of Ashton, Idaho.
- 7:19While you may already be perking up hearing about
- 7:22this hidden scenic road, I ask you to pump the
- 7:25brakes for a little bit. Grassy Lake Road is
- 7:27not a casual drive. The road is oftentimes washboarded,
- 7:32sometimes rutted, sometimes full of deep potholes.
- 7:35It is windy and always narrow. The National Park
- 7:39Service takes this one step further and recommends
- 7:43a high clearance vehicle. Usually I'm a bit lax
- 7:47about warnings like this, like, oh, you can make
- 7:49it. But this is correct. I want to say that even
- 7:53those route looks short on a map, the conditions
- 7:55of the road can easily take an hour to each way
- 7:59without stops. And this is not something to do
- 8:02in a camper van, in a RV or in a vehicle that
- 8:06does not do well on very, I'll call them rustic
- 8:10roads. Now, if you do have a car that's capable
- 8:13of driving on some really bumpy, not ideal roads,
- 8:18this is for you. Starting at Flag Ranch, the
- 8:20first couple of miles are probably the easiest
- 8:22part of the drive. The road leaves the Snake
- 8:25River and passes through lodgepole forests and
- 8:27meadows, and in the first few miles, you're still
- 8:30close to the services of Flag Ranch, which is
- 8:32also known as Headwaters, where you can get fuel,
- 8:35food, and other supplies. After those first few
- 8:38miles, though, the pavement is long gone and
- 8:41the road becomes a very bumpy gravel route that
- 8:45continues west. This is an area where wildlife
- 8:48is common, so I'd take the curve slowly. I would
- 8:51stop at any place you have good visibility and
- 8:54scan for moose, elk, deer, and bears, especially
- 8:57as we get a little later in this month. At about
- 9:0011 miles in, you reach Grassy Lake Reservoir,
- 9:03and this is one of the landmarks that gives the
- 9:05road its name. It's a good place to slow down,
- 9:08take in the scenery, get out of the car, wander,
- 9:11because the road's just kind of settled into
- 9:13what it's going to be for the next little bit.
- 9:16At and around the reservoir, there are some trailheads,
- 9:18there's a couple side roads to get to another
- 9:20little lake. This is a good place to really wander
- 9:23and see what else is out there if you have time.
- 9:26I really like around the reservoir a lot, and
- 9:29if this is where you just decide to drive to
- 9:31and turn around, you've had a good time. I forgot
- 9:34to mention that when you're driving out here,
- 9:38really make sure to keep an eye out just for
- 9:40cool spots to get out and wander for a little
- 9:42bit. When you get out of the car, always carry
- 9:44bear spray. This is a heavy bear area, but it's
- 9:48worth it to just explore because it's a really
- 9:50overlooked, very pretty section of country. So
- 9:55from roughly 11 to 20 miles, you're continuing
- 9:57west through increasingly remote country. There's
- 10:01more trailheads, there's more side roads, and
- 10:04this is just So cool, so remote, so scenic. I
- 10:08really like being out here in the morning or
- 10:11the evening, especially when the sun's low on
- 10:14the horizon. There's a little smoke in the air
- 10:16and makes it all look very scenic as well. Again,
- 10:19though, once you're driving out here, know that
- 10:21you're not going to be driving fast. You're not
- 10:24going to be able to make up time for all your
- 10:25stops. You're going to have loose gravel, washboards,
- 10:28potholes, narrow sections, and just everything
- 10:31that's going to slow you down. And that's kind
- 10:33of the reward of being here. This is not a road
- 10:36to quickly go from point A to point B. You should
- 10:39be out here to just enjoy the remoteness and
- 10:42the scenery. If you want a remote picnic, this
- 10:44is where you go. So then around 20 to 35 miles,
- 10:49the road continues west and you just kind of
- 10:53slowly exit. The way you kind of entered, you
- 10:56just exit everything and you're still... enjoying
- 11:00some good views, some awesome wetlands, little
- 11:03lakes here and there, really nice quiet meadows,
- 11:07good wildlife watching, but every mile you drive,
- 11:10you're closer to the end of this road. By about
- 11:13mile 36, you then get off the gravel and the
- 11:17road continues another dozen or so miles toward
- 11:19Ashton before you connect to all of the other
- 11:23roads out there. The entire Flag Ranch Ashton
- 11:26route is about 49 miles. but the character of
- 11:30that drive changes considerably between the remote
- 11:32gravel section and the approach to Ashton. So
- 11:35I really just am talking about the gravel section.
- 11:38If you're doing this drive in late August, it's
- 11:41a really good time of the year. I love it. You
- 11:43get those elk bugles in the morning and the evening.
- 11:46You start seeing moose out there. Moose are starting
- 11:48to hang out for their mating season. You also
- 11:51get just away from everybody. August is a busy
- 11:55time in the parks for Tetons and Yellowstone,
- 11:59and Grassy Lake is a little slice of heaven that,
- 12:04yeah, it's more popular than it's been, but honestly,
- 12:07the road conditions just kind of scare enough
- 12:09people away. It's a very local, very niche thing
- 12:12to do, so enjoy it. I think you'll love it. Just
- 12:16be aware that when there are storms in the area,
- 12:20this area can flood pretty quickly. You know,
- 12:23we don't get a lot of heavy rains, so our drainage
- 12:25is not the same as some other areas. So if we
- 12:27get a thunderstorm that rains an inch or two,
- 12:29expect some very muddy conditions. If you're
- 12:34looking for a quieter road that gets you away
- 12:36from Yellowstone's main routes, Grassy Lake Road
- 12:39is well worth considering, but it's a road to
- 12:41approach with respect. The scenery is beautiful,
- 12:45the country is remote, and the route offers exactly
- 12:48the kind of off -the -beaten -path experience
- 12:50I'm always encouraging people to seek out. Just
- 12:53remember that this is not a casual scenic drive.
- 12:56Again, the road can be rough, narrow, and slow
- 13:00going, cell service is unreliable and non -existent,
- 13:04and late August weather can change quickly. But
- 13:06go prepared, take your time, make sure your vehicle
- 13:10and supplies are up for the trip, if you do that,
- 13:14Grassy Lake Road can be one of those Yellowstone
- 13:15drives that you remember long after you've left
- 13:18the park. My tip of the week. So, most of you
- 13:23that listen to this, this will be completely
- 13:25known, but I do want to reiterate this so you
- 13:28can pass this message along, but this week I'm
- 13:31going to be talking about why no one should take
- 13:34anything from the park that includes antlers,
- 13:37rocks, bones, flowers, and feathers. Just leave
- 13:41them be. I know there's something almost irresistible
- 13:45about finding a beautiful piece of Yellowstone
- 13:47and wanting to hold onto it. Maybe it's an unusually
- 13:52colorful rock beside a trail, a wildflower that
- 13:55seems too perfect to leave behind, a feather
- 13:58lying in the grass, or an elk antler resting
- 14:00in the woods. It's easy to think, I'll just take
- 14:03this one thing home. After all, it's already
- 14:05laying here. How could taking one thing possibly
- 14:09hurt? In Yellowstone, the answer is simple. Just
- 14:12leave it where you found it. This is not merely
- 14:15a suggestion from the National Park Service.
- 14:18Removing or possessing natural resources, including
- 14:21wildflowers, antlers, rocks, and other natural
- 14:24objects is prohibited under federal regulations.
- 14:28Yellowstone's current laws and policies specifically
- 14:31identifies 36 CFR 2 .1 A1 as prohibiting the
- 14:39removal or possession of natural or cultural
- 14:42resources. The Yellowstone Pledge puts it more
- 14:46plainly. Leave what you find. Don't take antlers,
- 14:49artifacts, rocks, plants, or other objects from
- 14:52the park. There's a good reason for leaving these
- 14:56things behind. Let's say you find a rock that
- 14:59you like. It may seem insignificant to pick it
- 15:02up and put it in your pocket. But Yellowstone's
- 15:05geology tells a really cool story. And a rock
- 15:08is evidence of an ancient lava flow, or a glacier,
- 15:12or an extinct volcanic event, or erosion of mountains
- 15:15that existed long before Yellowstone became a
- 15:18national park. Maybe it's a fossil, or some other
- 15:21geological object. While it is tempting to put
- 15:25it in your pocket, leave it there. It's part
- 15:29of the landscape. It tells the story. And other
- 15:32people deserve to have that story too. By taking
- 15:35things away from the park, we're altering how
- 15:37the park is and we're changing the story and
- 15:41putting ourselves in it. If you've listened to
- 15:43this podcast enough, you know that I do not ever
- 15:46have main character energy. The fact that I have
- 15:48a podcast is funny to me because I really don't
- 15:52like being the voice of something, but it's the
- 15:56same as like everything else in the park. I want
- 16:00the park to speak for itself. And if you take
- 16:02a rock, something like that, then you're not
- 16:05letting the park speak for itself. Now, I also
- 16:09mentioned wildflowers. Yellowstone is home to
- 16:12more than a thousand native plant species and
- 16:14flowers are part of that ecosystem. They provide
- 16:17food for insects and other wildlife. But more
- 16:20importantly than that, they produce the seeds
- 16:24that allow future generations of plants to grow.
- 16:26Picking a flower may seem harmless, but thousands,
- 16:31tens of thousands, hundreds of thousands of visitors
- 16:34making the same decision would have a very real
- 16:37effect on how the landscape looked. If everybody
- 16:40hung out when the wildflowers were blooming around
- 16:44Mount Washburn and picked it, then the next year
- 16:47the flowers there aren't going to be as good.
- 16:49And every year everybody does that, it's going
- 16:51to get worse and worse. So... Again, straightforward
- 16:54message from the National Park Service, enjoy
- 16:56the wildflowers, but don't pick them. Antlers
- 17:01can be really tempting. Finding a naturally shed
- 17:04elk antler or a skull or a bison horn or a moose
- 17:08paddle, something like that, is really cool.
- 17:11I love going to the backcountry and finding these
- 17:14things. But that's precisely why it belongs in
- 17:17Yellowstone. Shed antlers are part of the natural
- 17:20environment and the park's regulations specifically
- 17:23prohibit collecting them. The same applies to
- 17:26bones, feathers, and other animal remains. I
- 17:30know it looks like an insignificant thing to
- 17:33do, but there's still natural resources that
- 17:35are protected by the park. If I could take things
- 17:38from the park, I'd have an amazing collection,
- 17:40but then I'd also take people into areas and
- 17:43there'd be no cool skulls or bones or antlers
- 17:46out there, and people deserve to see that. Along
- 17:49these lines, some of the other guides like to
- 17:51find antlers and bones and then hide them in
- 17:55special places so only they know where they are.
- 17:57I don't even do that. If I see something in the
- 18:00backcountry, we pick it up, we handle it, we
- 18:03take pictures with it, and we set it down exactly
- 18:06where we found it. And that's what I hope all
- 18:08of you do. Now there's another reason I like
- 18:11the idea of leaving things behind. It's that
- 18:15someone else should get to discover them too.
- 18:18Imagine finding an unusual rock along a trailhead
- 18:21and realizing that nobody has picked it up Maybe
- 18:23the next person stops to examine it Maybe somebody
- 18:26with kids is there and they wonder how it got
- 18:29there and they become a scientist because I don't
- 18:31know You know, there's something that can happen
- 18:34by coming across these things So one example
- 18:38of people leaving things behind that makes a
- 18:40really cool moment for everyone is there's a
- 18:43trail north of the Yellowstone River near the
- 18:45boundary of the park Where you're hiking along
- 18:49and if you know where to look There's a tree
- 18:52with an antler sticking out of the middle of
- 18:54it. The tree is fully grown around the antler
- 18:57Somebody years and years ago when the tree was
- 19:00kind of split Set an antler there and every single
- 19:03person that walked by left it there That's what
- 19:08I hope happens everywhere is that you see something
- 19:10you enjoy it and then you leave it behind for
- 19:13other people to see Now, if I sound like, oh,
- 19:16I'm just, you know, he's just saying all these
- 19:20things because he just wants everything to be
- 19:21left there, I'm also saying that this is illegal.
- 19:25There are real legal consequences for ignoring
- 19:27these rules. Violations of the federal regulations
- 19:31governing Yellowstone can result in fines up
- 19:33to $5 ,000 per person and imprisonment up to
- 19:37six months or one or the other. The Yellowstone
- 19:41superintendent also notes that courts can impose
- 19:44probation of up to five years and court costs.
- 19:47There are maximum statutory penalties, not an
- 19:50automatic fine for every person who picks up
- 19:52a rock, and the actual penalty depends on the
- 19:55circumstances and the charge. Obviously, people
- 19:58pick things up all the time. And if the park
- 20:00was like, here's five years in jail for or six
- 20:04months in jail for picking up a rock. for and
- 20:08it's a kid you know they can't do that but they
- 20:13can go after people when they really start breaking
- 20:15rules and a lot of those rules are for fossils
- 20:17for skulls and antlers things like that yellowstone
- 20:21has demonstrated that park violations can lead
- 20:23two significant consequences. In one recent case
- 20:26involving multiple illegal activities, a defendant
- 20:29received jail time, fines and fees, probation,
- 20:32and a temporary ban from Yellowstone and all
- 20:34public lands. Other Yellowstone cases involving
- 20:37resource or safety violations have resulted in
- 20:40substantial fines, community service, payments,
- 20:42jail sentences, and park bans as well. So why
- 20:45am I talking about this? That's usually the question
- 20:47I ask myself and I know all of you ask when I
- 20:50go on these rants. I'm talking about this right
- 20:52now because I've seen more people go out and
- 20:54pick flowers. They're cutting little pieces of
- 20:57sage. They're doing these things that I understand
- 20:59it's exciting. I've also seen people try and
- 21:02take bones and antlers and then get tossed in
- 21:04the back of a ranger car. This happens all the
- 21:06time and I see it and I just want to mention
- 21:09it in case you're tempted to do that. Just know
- 21:12it's against the law. Don't do it. Enjoy the
- 21:15things when they're there. Mark down where you
- 21:17found them and go back year after year and see
- 21:19how they've changed. That's more fun. That's
- 21:22the legal way to do it. And know that the best
- 21:25Yellowstone souvenir is the one that you leave
- 21:28behind so you can continue to visit it and create
- 21:31more and more memories every single time you
- 21:33go there. My random Yellowstone fact of the week.
- 21:37Glacial history and glacial erratics. One of
- 21:40the easiest ways to begin understanding Yellowstone's
- 21:43glacial history is to stop and look at a rock
- 21:45that seems as though it shouldn't be there. Across
- 21:48Yellowstone National Park large boulders sit
- 21:50scattered across valleys, ridges, and plateaus,
- 21:53sometimes surrounded by a bedrock of an entirely
- 21:56different kind. These are glacial erratics, and
- 22:00they are among the most visible reminders that
- 22:02Yellowstone was once buried beneath an immense
- 22:04landscape of moving ice. An erratic is a rock
- 22:08that has been transported from its original location
- 22:10by a glacier and deposited somewhere else as
- 22:13the ice retreats. In Yellowstone these rocks
- 22:16provide tangible clues about the direction and
- 22:18extent of ancient glaciers. A glacier is more
- 22:22than a frozen sheet of ice sitting motionless
- 22:25on the ground. As snow accumulates and compresses
- 22:28it into ice, the growing mass eventually flows
- 22:30under its own weight. Rocks can become incorporated
- 22:33into the ice, particularly along the base, where
- 22:36they're carried along the dragged landscape.
- 22:39Some are ground into sediment, and others, including
- 22:42enormous boulders, may travel for miles before
- 22:45being deposited. By identifying the composition
- 22:48of an erratic and comparing it with the bedrock
- 22:50around it, geologists can determine where the
- 22:52rock originated and begin reconstructing the
- 22:56glacier that carried it. This is really important
- 22:59in the northern range of Yellowstone where I
- 23:02do a lot of tours and I always point out these
- 23:04glacial erratics to varying levels of excitement,
- 23:07I'll be honest. Not everybody cares, but I'm
- 23:09talking about it now. These erratics help geologists
- 23:13recognize the glaciers that impacted Yellowstone.
- 23:17The USGS scientists today combine evidence from
- 23:20erratics, moraines, glacial sediments, and different
- 23:23things to reconstruct the movements and timing
- 23:26of Yellowstone's ancient ice. Once we recognize
- 23:30the erratics as evidence of moving ice, we can
- 23:32zoom out and ask a larger question. When did
- 23:35Yellowstone become a glacial landscape? Yellowstone
- 23:39has experienced repeated glaciation during the
- 23:41last 2 .6 million years. Evidence for the oldest
- 23:45episodes is limited because later glaciers, volcanic
- 23:48eruptions, rivers, and other geological processes
- 23:52have altered or buried much of that record. The
- 23:55National Park Service notes that a glacial deposit
- 23:57near Tower dates approximately 1 .3 million years
- 24:01ago, demonstrating that glaciers occupied Yellowstone
- 24:04long before the most recent ice age. The two
- 24:07most recent major glaciations are known as the
- 24:11Bull Lake and Pinedale Glaciations. The Bull
- 24:14Lake Glaciation occurred roughly 150 ,000 -140
- 24:18,000 years ago and produced an extensive glacial
- 24:21system across the Greater Yellowstone region.
- 24:24In some areas, Bull Lake glaciers actually reached
- 24:27farther than the later Pinedale glaciers. Much
- 24:30of the evidence they left behind, however, was
- 24:33later buried or destroyed by younger ice. The
- 24:36Pinedale glaciation was the most recent major
- 24:40glacial episode and corresponds broadly with
- 24:43the last ice age. At its maximum, an enormous
- 24:46ice cap covered nearly the entire Yellowstone
- 24:49Plateau and may have reached approximately 4
- 24:52,000 feet thick. That's almost a mile thick.
- 24:58Mount Washburn was completely buried beneath
- 25:00the ice. It's important to know that this was
- 25:03not part of the continental ice sheet that covered
- 25:05Canada and much of the northern United States.
- 25:08Yellowstone developed its own extensive mountain
- 25:11glaciers and plateau ice cap, fed by abundant
- 25:14snowfall at the region's highest elevation. The
- 25:17ice did not simply sit over Yellowstone. It flowed
- 25:20outward from the plateau and surrounding mountains,
- 25:23carving valleys, transporting enormous quantities
- 25:25of rock, and depositing debris as it advanced
- 25:28and retreated. In northern Yellowstone, an outlet
- 25:32glacier flowed down the Yellowstone River Valley
- 25:34and eventually extended into what is now Montana's
- 25:37Paradise Valley. Moraines and other deposits
- 25:40left along its path allow scientists to reconstruct
- 25:43this glacier's retreat. The retreating glaciers
- 25:46also help some of the landscapes we recognize
- 25:48today. Glacial ice dammed rivers and altered
- 25:51drainage patterns, while meltwater and sediments
- 25:54reshaped valleys. In Hayden Valley, for example,
- 25:58glacial blockage helped create a lake where sediment
- 26:00accumulated before the ice disappeared and the
- 26:03lake drained. The broad valley visitors see today
- 26:06is partly a product of glacial activity and its
- 26:09aftermath. Glacial dams also formed in Lamar
- 26:12Valley and the eventual failure produced large
- 26:16floods that helped shape the landscape around
- 26:18Yellowstone's northern entrance. Eventually the
- 26:21ice disappeared Most of Yellowstone's plateau
- 26:23was ice -free by roughly 13 to 14 ,000 years
- 26:26ago, and rivers, vegetation, wildlife, and eventually
- 26:29humans returned to the landscape that was already
- 26:32fundamentally shaped by glaciers. Archaeological
- 26:35evidence indicates that people were present in
- 26:37the Yellowstone region by around 11 ,000 years
- 26:40ago, and that's always shifting. A little aside
- 26:43for those of you who want to know me a little
- 26:45better, I have been really digging into early
- 26:50human history, and then some more modern human
- 26:52history. And it's interesting that when I grew
- 26:56up, we were always told that humans were in North
- 27:00America first around, you know, eight to 10 ,000
- 27:02years ago, and then it became 11. And now I've
- 27:05heard 14. And now there's been theories of 16
- 27:08to 18 ,000 years being floated about. And it's
- 27:12fascinating to see as we lock down how long people
- 27:14have been here and what life was like. If you
- 27:18know of any good books about this, recommend
- 27:20them to me. I love this. I legitimately love
- 27:23this. I listen to these audiobooks all the time
- 27:25when I'm driving to and from the park. I read
- 27:27them. It's great. Alright, back to glaciers.
- 27:31So, glacial erratics are something that I love
- 27:34and I wanted to talk about because they're really
- 27:36compelling. They sit out in the middle of the
- 27:39prairie and they look nothing like the rest of
- 27:42the landscape. What it does is it tells you that
- 27:45something else was there. The glaciers are gone,
- 27:49but their fingerprints remain across Yellowstone
- 27:51and the valleys they carved, the sediments they
- 27:53deposited, the lakes and drainages they altered,
- 27:57and the enormous rocks they carried far from
- 27:59home. A glacial erratic is, in a very literal
- 28:02sense, a piece of Yellowstone's ice age sitting
- 28:06in the landscape that we see today, waiting to
- 28:08tell us where the ice once went. The weather
- 28:12for the coming week. I know I went from talking
- 28:14about geology to weather I'm sure people are
- 28:17sleeping by now the weather for the coming week
- 28:19as always This is the best forecast for the week
- 28:22at the time of the recording the forecast can
- 28:24change numerous times in a week But this should
- 28:27serve within the ballpark of what you'll experience
- 28:29when visiting the park. So let's start with Lamar
- 28:31Valley on Thursday a high of 84 a low of 50 Friday
- 28:3785 and 53 Saturday 77 and 50 with a 55 % chance
- 28:42of thunderstorms late morning afternoon into
- 28:45the evening Sunday 76 and 46 35 % chance of storms
- 28:50during the day Monday 76 and 46 19 % chance of
- 28:55rain Tuesday 76 and 46 22 % chance and Wednesday
- 28:5976 and 47 with a 24 % chance of precipitation
- 29:05Gardner, Montana On Thursday 89 and 52 Friday
- 29:1189 and 57 Saturday 81 and 52 50 % chance of thunderstorms
- 29:18Sunday 79 and 48 with a 35 % chance of thunderstorms
- 29:22Monday 80 and 49 with an 18 % chance of rain
- 29:26Tuesday 79 and 49 18 % chance of rain Wednesday
- 29:3180 and 49 24 % chance of rain West Yellowstone
- 29:36Thursday, 84 and 44. Friday, 86 and 51. Saturday,
- 29:4376 and 46 with a 44 % chance of thunderstorms.
- 29:47Sunday, 75 and 42, 24 % chance of storms. Monday,
- 29:5275 and 43, 20 % chance. Tuesday, 75 and 44, 15
- 29:57% chance. And Wednesday, 76 and 44 with an 18
- 30:01% chance of some storms. Cody, Wyoming. Thursday
- 30:0691 and 61 Friday 89 and 63 Saturday 86 and 63
- 30:12with a 21 % chance of thunderstorms Sunday 86
- 30:16and 60 with a 25 % chance of thunderstorms Monday
- 30:2083 and 58 with a 23 % chance Tuesday 81 and 59
- 30:25with a 16 % chance and Wednesday 84 and 59 with
- 30:30a 24 % chance of thunderstorms And finally Cook
- 30:34City, Montana Thursday 78 and 51 Friday 80 and
- 30:3954 Saturday 74 and 51 with a 61 % chance of thunderstorms
- 30:45Sunday 72 and 47 with a 36 % chance of thunderstorms
- 30:49Monday 72 and 47 19 % chance Tuesday 72 and 48
- 30:5530 % chance of storms and Wednesday 73 and 49
- 31:0033 % chance of storms Road conditions no major
- 31:05park roads are closed right now. There's obviously
- 31:08some construction here and there but Delays have
- 31:11been really minimal. I haven't really gotten
- 31:13too bothered by sitting in traffic. So it shouldn't
- 31:16be too bad I don't think they're doing much above
- 31:19and beyond that Please know that during these
- 31:21thunderstorms if they're bad enough the park
- 31:23will close some of those dirt side roads and
- 31:26That's for good reason because they can't really
- 31:29get people out if they get stuck there. So know
- 31:32that after a thunderstorm those roads may be
- 31:34closed. I meant to mention that a while ago and
- 31:36I forgot but some of you have already pieced
- 31:39that together when you're visiting and it's pretty
- 31:41obvious as to why. For up -to -date road information
- 31:45you can call 307 -344 -2117 or you can sign up
- 31:49to receive Yellowstone Road Alerts on your cell
- 31:52phone by texting the number 82190 to the number
- 31:56888 -777. Don't know if you care, but I do a
- 32:01little dance every time I say eight eight eight
- 32:03seven seven seven so enjoy that mental image
- 32:06camping information Everything that is going
- 32:10to be open is open so if you're camping enjoy
- 32:13it good time of the year to camp cooler mornings
- 32:15it smelled so good this last week in the park
- 32:19every morning after some rain i don't know if
- 32:21everybody else noticed it if you're in the park
- 32:23but i absolutely loved it it reminded me of camping
- 32:26so i i hope that you're enjoying the weather
- 32:29and the cooler mornings too the wildlife watching
- 32:33update so last week has been wild in the park
- 32:36no pun intended it's been really fun for the
- 32:41frequency of animals spotted in some areas and
- 32:43the absolute mystery of where the animals went
- 32:46and others. So I heard from a lot of people this
- 32:49week that there were no bison in Hayden Valley.
- 32:53People would go down there for the bison rut
- 32:54and they didn't see any and that happens. The
- 32:57bison move around. They're not in one spot all
- 32:59the time and sometimes they go a ridge or two
- 33:02over and they're not right next to the road.
- 33:04Since they were gone last week. I'm assuming
- 33:06they're gonna be back this coming week They might
- 33:09not be but they could be so check that out north
- 33:12Side of the park the northern range. I say this
- 33:16every week This is where the best wildlife watching
- 33:19is happening the other day. There were wolves
- 33:22running around the bison Institute area There
- 33:25were moose out by floating Island Lake There
- 33:28were badgers and coyotes running together near
- 33:31Slough Creek. There are all of these experiences
- 33:34that were truly wonderful in the northern range.
- 33:37There are grizzly bears spotted in the distance.
- 33:39There are black bears up on the hillsides. The
- 33:42northern range was really popping off in wildlife
- 33:44watching last week. Now, does that mean it's
- 33:46going to be the same this week? Can't tell you
- 33:48that. I do also want to say that bighorn sheep
- 33:52sightings have been. Less than normal for me
- 33:56in the northern range. Usually I'm seeing them
- 33:58a lot by Junction Butte and things like that
- 34:02haven't really been seen them there even went
- 34:03out over to calcite Springs and scanned didn't
- 34:05see any there So they're probably on the north
- 34:09side of the river from Junction Butte just hanging
- 34:11out. So it's not like oh, no, where do they go?
- 34:14They're gone forever. It's just they're somewhere
- 34:16else. The heat made it maybe did it the rainstorms
- 34:18maybe did it I've also been hearing that, you
- 34:21know, bighorn sheep have been pretty good over
- 34:23Dunraven Pass in the evenings and out the east
- 34:26entrance throughout. They've been there. There's
- 34:29also been some really good elk activity around
- 34:33mammoth around Lake, even heard somebody say
- 34:36that they saw some in Canyon the other day. So
- 34:38that was neat. So the elk rut is starting to
- 34:42pick up. Everything will say elk rut starts in
- 34:45September and those are rough. Estimates of when
- 34:48things happen the elk red is starting now, but
- 34:52doesn't really take off until September usually
- 34:54So if you're in the park now, don't think oh,
- 34:57I'm not gonna see any elk There's definitely
- 35:00elk that are starting to try and gather harems
- 35:03around the lake area around mammoth north of
- 35:07the park to in Like by the airport. There's a
- 35:10bunch of elk the airport in Gardiner. Not the
- 35:13airport in West Yellowstone And then there's
- 35:16a lot of elk that have been hanging out by Madison
- 35:18and things like that. So you're here at a good
- 35:20time. It's just harder to see things. The one
- 35:23other wildlife thing I want to mention before
- 35:25I move on from the segment is that a lot of people
- 35:28have been reaching out to me saying, well, I
- 35:29need to see a grizzly bear. Where can I see grizzly
- 35:31bears? This is the hardest time to see a bear.
- 35:34You're either going to see one or you're not.
- 35:37The best chance you have is going out the east
- 35:39entrance, going through Hayden, going through
- 35:42Lamar, and just putting in the time in the evenings
- 35:45and the early morning hours. It's the hardest
- 35:48time if you're dead set on wanting to see bears.
- 35:52Plan a trip for next year in May and early June.
- 35:55that is the best time to see dependable bear
- 35:57sightings. So if you're here now, I can't really
- 36:01help you see a bear. I can tell you that if you
- 36:03do see one, it's probably going to be a mile
- 36:05or two away. Maybe you're going to get lucky,
- 36:07but most people have been seeing them pretty
- 36:10far away. So spotting scopes, binoculars, good
- 36:12thing to have. If you need more wildlife watching
- 36:15tips, reach out to me. Happy to help. Also, I
- 36:18have a wildlife watching guidebook on my website.
- 36:20Ebook copies are just $10. And if you want to
- 36:23support the podcast and have some wildlife tips
- 36:25for your park visit, happy to send one of those
- 36:27out your way. I do have paperback copies too,
- 36:30but generally most people that are listening
- 36:32to this are in the park or headed to the park
- 36:34immediately. And my shipping goes through media
- 36:36mail so it can take a week, week and a half.
- 36:39So ebooks get there within 24 hours of when I
- 36:42see your order. So pick that up. I also have
- 36:45a hiking one. But if you listen to the podcast,
- 36:47you know that I really dislike selling my products
- 36:51or like doing fake ad reads. So if you like what
- 36:56you hear, pick up a guidebook. If not great,
- 36:57keep listening. Happy to help you. Trail alerts
- 37:01and updates. No real trail closures right now.
- 37:05That could change, but right now there is nothing
- 37:07impacting your backcountry travel or hiking travel.
- 37:11Glanced at it. It's updated for the most part
- 37:14This has been a pretty bad year for this to be
- 37:17updated and it could be staffing issues It could
- 37:19just be that the amount of time that the backcountry
- 37:24Office has to update the website is not quite
- 37:27the same as previous years Maybe more people
- 37:29are hiking and asking them questions throughout
- 37:31the day or whatever But there is a link to the
- 37:33backcountry conditions page in the show notes
- 37:35of this I do that every week and will continue
- 37:39until the end of September, so check that out.
- 37:42If you are hiking, carry bear spray, have it
- 37:45readily accessible and not in the bottom of a
- 37:47backpack, and know how to use it. If you see
- 37:49a bear close by, you maybe have two to three
- 37:52seconds to react. And with that is the trail
- 37:57of the week. This week's trail offers a little
- 37:59more of a challenge than some of the previous
- 38:01week's hikes. I know I'm trying to mix it up
- 38:03a little, but if you're hoping for something
- 38:05easier this time around, I suggest dropping me
- 38:08a message or, you know, check out my hiking guidebook
- 38:11again, $10 for an ebook. Um, this week's hike
- 38:15comes straight from my guidebook and it's sepulcher
- 38:18peak. Now I call it sepulcher. Some people say
- 38:21sepulcher. I'm going to call it sepulcher because
- 38:24it pains me. It's the same as saying like tower
- 38:26fall. So sepulcher, uh, if that is cringy to
- 38:30you to hear, I apologize in advance. I don't
- 38:33say it that many times. This hike near Mammoth
- 38:36Hot Springs is a good way to get away from Mammoth,
- 38:40because Mammoth can feel like one of the busiest
- 38:42and most developed corners of Yellowstone. There's
- 38:44boardwalks winding across the terraces, there's
- 38:47roads and buildings and plenty of people around.
- 38:49It's an awesome area. I love Mammoth, but sometimes
- 38:52you want to get away from it. It's really easy
- 38:56to assume that solitude is hard to find around
- 38:58Mammoth. I thought that too until I hiked Sepulcher.
- 39:01beginning near Liberty Cap, the route climbs
- 39:04in a much wilder landscape than most people expect
- 39:08exists in this area. The full loop is commonly
- 39:11described by the National Park Service at about
- 39:1311 miles, but every time I do this it's about
- 39:1712 to 13 miles. Either way, it's a strenuous
- 39:21hike. You're gonna have roughly 3 ,400 feet of
- 39:24elevation gain and top out at a summit of 9 ,652
- 39:28feet above sea level. From the top, you get sweeping
- 39:31views across Northern Yellowstone, including
- 39:34Mammoth, Gardiner, Swan Lake Flats, the Yellowstone
- 39:36River, and Electric Peak, and all of the mountains
- 39:40of the region. You can actually see the Tetons
- 39:42from the backside of this hike. If you do hike
- 39:46this, know it's... very much bear country, the
- 39:49National Park Service specifically warns that
- 39:51this area is heavy in grizzly bears. So carry
- 39:56bear spray, have it readily accessible and not
- 39:58buried in your backpack, hike in groups when
- 40:00possible, and if you're hiking alone or with
- 40:02groups it doesn't matter, make a lot of noise
- 40:04by talking, clapping, singing, everything you
- 40:07can to let animals know you're coming by. Also,
- 40:10read how to use your bear spray and know how
- 40:12to use it confidently before you head out. If
- 40:16you start the route by connecting the Beaver
- 40:19Pond's trail and hike the loop counterclockwise,
- 40:22then this is the way that I hike and you can
- 40:24have that knowledge when you start. This isn't
- 40:28an easy hike. Again, you immediately start to
- 40:32climb. You move through the forest and open country
- 40:35before you climb even more toward the summit.
- 40:38The elevation gain comes quickly, expect a sustained
- 40:41climb rather than a leisurely stroll, and remember
- 40:44that you're starting at around 6 ,200 feet before
- 40:47eventually reaching 9 ,700 feet. But, you're
- 40:50climbing a mountain, the views are worth it.
- 40:54climb out of the woods a bit you get into some
- 40:56open sections and there's switchbacks and there's
- 40:58ridge lines and then there's another forest and
- 41:01then there's a really steep part and then you're
- 41:02at the summit that sounds very easy if you hike
- 41:05it you know exactly what i meant by all of that
- 41:07but just know that you're going to be hiking
- 41:10steep and exposed for quite a while start this
- 41:14early because the weather can change and also
- 41:16doing this in the heat is no fun and there's
- 41:19not a lot of shade to be found I would rather
- 41:22come down the backside of this mountain when
- 41:24I'm in the sun even though there's no shade because
- 41:26you're losing elevation and the wind is usually
- 41:29whipping there. Once you're on the higher ridges
- 41:33this is when the character of the hike changes
- 41:35and the mountain really starts feeling like more
- 41:38of a mountain. The forest gives way to the open
- 41:40slopes and the landscape around Mammoth is really
- 41:42far away in spirit and distance. It's one of
- 41:46my favorite things about this hike is you just
- 41:49get so much contrast on it. You begin the day
- 41:52surrounded by cars and within a few miles you
- 41:54find yourself walking a high mountain ridge with
- 41:57very little evidence of civilization and very
- 42:00few people around it. I see people here sometimes
- 42:03but not that often. Last time I did this hike
- 42:06I didn't see a whole person in the 12 plus miles
- 42:08I did. The final approach to the summit makes
- 42:11the hike feel like a mountain climb but um well
- 42:15i shouldn't say a climb a mountain hike you're
- 42:18not using your hands you don't need to use your
- 42:19hands you get along this really sharp drop off
- 42:23there's marmots running around you can look down
- 42:26and see mountain goats on the cliff sides and
- 42:29then you're working your way up a decently steep
- 42:32section getting to the top on a clear day At
- 42:35the top, the panorama is fantastic. I do want
- 42:38to say if you're hiking this, you're going to
- 42:40get to almost the top and there's a boot path
- 42:43to the cliffs on the right side. That is where
- 42:46you want to go. Yes, you can turn and follow
- 42:49the trail and then go to the true summit, but
- 42:51the views there aren't as good. I mean, do that,
- 42:54but you're going to get the same views without
- 42:56having to do that little bit of a summit push.
- 42:58And I love sitting on those rocks by the cliff
- 43:01because the views are fantastic and you just
- 43:04get a look down at the Yellowstone River 3000,
- 43:064000 feet below you. The summit isn't the end
- 43:09of the scenery, though. So after you have a break
- 43:12there, refuel, rehydrate, keep hiking along the
- 43:15trail past that real summit, and then you start
- 43:18descending into one of the more beautiful descents
- 43:21in the park. huge switchbacks on this open prairie
- 43:25as you work your way down towards Swan Lake Flats.
- 43:28You can see Bunsen Peak, you can see all of those
- 43:30other mountains, and way off in the distance
- 43:32on a clear day, you see the Tetons. Eventually
- 43:36those sweeping switchbacks fade away, you're
- 43:38back in the trees and you follow a creek. Along
- 43:41this creek is where I've seen moose, where I've
- 43:43seen lots of bear sign, so make a lot of noise
- 43:46when you're working your way through the creek.
- 43:48eventually you then reach another open section
- 43:51of prairie and there's a trail to the left and
- 43:54you want to take that and head back toward mammoth
- 43:56you can kind of pick and choose the way you go
- 43:58back there's multiple trails to follow so you
- 44:02might want to plan out before you go and know
- 44:03which trail to go on but one of the great things
- 44:07about this is that you get back after the mountain
- 44:13and you walk through the prairie and then you
- 44:15start dropping back down toward mammoth and you
- 44:17start seeing signs of all the mammoth thermal
- 44:19areas you're not walking through the hoodoos
- 44:22but all of a sudden you'll walk through a forest
- 44:25and there'll be a giant gap in the ground next
- 44:29to you and it's just a vent and then you get
- 44:32further and then there's a place where there's
- 44:34no Plants growing and it's just a barren wasteland
- 44:38and then you keep getting closer and closer to
- 44:40mammoth the contrast from what you were seeing
- 44:43up on the mountains lush and green and really
- 44:46fun and then this like Thermal wasteland is almost
- 44:49comical after spin and then it gets more comical
- 44:52because after spending hours in the quiet mountains
- 44:56all to yourself you suddenly find yourself back
- 44:59along that upper terrace loop road where there's
- 45:02cars driving there's lots of visitors there's
- 45:05the terraces and all of a sudden you're back
- 45:07in civilization after a few miles of just nothing
- 45:11and so this transition can be a little jarring
- 45:15but it's really fun because when you walk back
- 45:18down mammoth and you go down some of the boardwalks
- 45:21to make your way back to where you parked you're
- 45:24going to be Dressed like you went on a major
- 45:26hike and everybody's gonna assume that you just
- 45:28dress that way to do the mammoth terraces Which
- 45:31is really funny to me and every time it makes
- 45:33me laugh in my head because I'm like no I just
- 45:35did like a 12 or 13 mile day But I don't need
- 45:38to brag about it Unless someone asks and then
- 45:40they're getting an earful about what my day was
- 45:43because I love recommending this mountain along
- 45:46this mountain you get a semi demanding climb
- 45:49a nearly 10 ,000 foot summit amazing views potential
- 45:55wildlife, great forests and meadows, thermal
- 45:58features, and just this level of solitude that
- 46:02you can't find anywhere else unless you do a
- 46:04real hike in the park. If you are not a serious
- 46:08hiker, do not do this hike. But if you're looking
- 46:12for a hike that has substantial elevation gain,
- 46:15a long distance, and a ridge line that can't
- 46:19be beat, this is for you. If you want an easier
- 46:22hike, Pick up my guidebook, reach out to me,
- 46:25happy to recommend things, but if you're looking
- 46:27for a mountain day that's a fun loop and you
- 46:30never have to backtrack a trail, this is the
- 46:33trail for you. That's it for this week. In the
- 46:37next episode, I'm going to return with all the
- 46:39information you need to have a good week in the
- 46:41park, including the wildlife weather and trail
- 46:42updates. Until then, pick up a guidebook of mine.
- 46:46Please recommend this to your friends or anybody
- 46:48coming to the park. Recommend it on social media
- 46:51if you can. I know social media is a bit not
- 46:54fun these days, but everybody needs positivity
- 46:57and pretty things and Yellowstone is full of
- 46:59all of that. So until next week, happy trails.
- 47:13Abrupt ending! This week in Yellowstone is brought
- 47:16to you by The Outdoor Society. That's my company.
- 47:19It's just me. I do this. It's a labor of love.
- 47:21If you like it, tell your friends. Rate and review
- 47:23it. Shoot me a message. Otherwise, keep listening
- 47:27and I hope to see you in Yellowstone. Copyright
- 47:302026, baby!