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Sibling rivalries are alive and well in this litter of coyote pups. Coyotes base their litter sizes depending on the pop...
26/06/2024

Sibling rivalries are alive and well in this litter of coyote pups. Coyotes base their litter sizes depending on the population of other coyotes in the area as well as food availability. A common litter size can be around 4-7 pups.

We have a few spots left! Join us - WFA/WFR Recert, June 14-16. With Wilderness Medicine Training Center.
25/05/2024

We have a few spots left! Join us - WFA/WFR Recert, June 14-16. With Wilderness Medicine Training Center.

Megaloceros giganteus, the Irish Elk or Giant Deer. This animal is thought to have been roaming Eurasia as recently as 8...
24/05/2024

Megaloceros giganteus, the Irish Elk or Giant Deer. This animal is thought to have been roaming Eurasia as recently as 8000 years ago. They were roughly the size of the Alaska moose and likely exhibited a similar lifestyle, as the most abundant concentrations of their remains have been found within boggy areas. They are more closely related to fallow deer than they are to their North American relatives, elk and moose. The antler to body size ratio in these animals was substantially greater than any cervidae to ever walk the earth.

This warm January weather has us looking forward to our upcoming summer adventures of wildlife spotting. Book a trip wit...
30/01/2024

This warm January weather has us looking forward to our upcoming summer adventures of wildlife spotting. Book a trip with us and let us show you all the great sights and animals the Yellowstone area has to offer!

Awesome wildlife sightings this morning in the Tetons! With the temperatures starting to cool off, the animals are becom...
26/08/2023

Awesome wildlife sightings this morning in the Tetons! With the temperatures starting to cool off, the animals are becoming more active.

Come get a look at the largest land mammal in North America, the American Bison. We are fortunate enough to have around ...
11/07/2023

Come get a look at the largest land mammal in North America, the American Bison. We are fortunate enough to have around 5,000 of these majestic animals roaming through Yellowstone. Join us on a Yellowstone wildlife tour to try and have an amazing encounter with these animals.

Ravens are one of the unsung heroes of the GYE. Members of the Corvid family of birds, Corvids are considered by many to...
29/06/2023

Ravens are one of the unsung heroes of the GYE. Members of the Corvid family of birds, Corvids are considered by many to be the most intelligent non-mammals living on our planet. Their powerful problem solving skills serve them well when it comes to the acquisition of food; they are able to access meals that others cannot because of this. Often you will see them following wolves on the hunt or accompanying grizzly bears as they scavenge on carrion.

Ravens generally are lifetime monogamous. A breeding pair together is the most common grouping to see ravens in on any given day.

It’s antler growing season for the Rocky Mountain Elk. Each year these antlers are shed and regrown during the summer mo...
26/06/2023

It’s antler growing season for the Rocky Mountain Elk. Each year these antlers are shed and regrown during the summer months, averaging around an inch of growth per day. Once fully grown the outer layer of velvet will shed and the bulls will be ready for the competitive mating season in the fall.

This year we have combined forces with  to offer a full day trip which is part wildlife tour in Grand Teton National Par...
17/06/2023

This year we have combined forces with to offer a full day trip which is part wildlife tour in Grand Teton National Park and part trail ride in the Teton Wilderness. Get in touch if you would like to book!

Lower Yellowstone Falls carries more water over a precipice than any other waterfall in the Rocky Mountains. In peak flo...
08/06/2023

Lower Yellowstone Falls carries more water over a precipice than any other waterfall in the Rocky Mountains. In peak flood, over 8000 cubic feet per second will plunge 308 feet over the brink. If you catch it in just the right light you are rewarded with the sensory overload of a rainbow in the mist.



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Spring is finally creeping in! The signs are all around us. Bird activity has increased significantly over the last week...
13/04/2023

Spring is finally creeping in! The signs are all around us. Bird activity has increased significantly over the last week. Mornings are getting noisier by the day as migrant birds begin to arrive.

Sitting around a campfire under the a starry ski in the wilderness of Yellowstone is something everyone should experienc...
19/02/2023

Sitting around a campfire under the a starry ski in the wilderness of Yellowstone is something everyone should experience. For those interested in stepping away from the roads, and immersion in Yellowstone’s wild backcountry, Teton Wilderness Tours offers guided summer backpacking trips. Inquire at [email protected]!

Jackson’s National Elk Refuge is one of the most amazing places to view wildlife in all the west, and it’s right on the ...
08/01/2023

Jackson’s National Elk Refuge is one of the most amazing places to view wildlife in all the west, and it’s right on the edge of city limits! At 25000 acres, it is relatively small when compared to the massive swaths of federal land that it shares borders with. In the summer it often leaves people scratching their heads as to why it is so hyped up. In the winter however, it harbors a tremendous concentration of wildlife.

Because of its geographic location, the refuge provides the most hospitable environment that can be found in the upper snake river drainage. The Tetons, along with the west and east Gros Ventre Buttes provide protection from prevailing weather moving from west to east through Jackson Hole. Those imposing features act as wind breaks and create a rain shadow affect on the refuge, reducing snow accumulation. In turn, the animals riding our winter here will have an easier time reaching forage underneath the snow, and won’t have to wallow through huge amounts of snow to travel. Conditions here attract bison, bighorn sheep, deer, the occasional moose, and around five to ten thousand elk every winter.

Non the less winter in Jackson Hole can be brutal no matter where you are. Many ungulates will succumb to it’s grip over the harshest parts of winter. However, nothing in the GYE goes to waste. Golden and bald eagles, coyotes, foxes, ravens, magpies, wolves, mountain lions, and occasionally grizzlies benefit from the abundance of ungulates and their carcasses.

The pika is possible the cutest animal in greater Yellowstone. They also happen to be one of it’s toughest. What is so e...
05/01/2023

The pika is possible the cutest animal in greater Yellowstone. They also happen to be one of it’s toughest. What is so extraordinary about them is that they occupy Yellowstone’s harshest terrestrial biome, the high alpine.

In the Yellowstone region, at elevations of ten thousand feet or more, trees are unable to grow. The reasons for this are: uplifted bedrock here is rapidly eroding away from steep head walls, leaving only exposed rock, scree, or poor undeveloped soils. Exposure to the extremes of atmospheric winds, bitter cold, heavy snows, lightning storms, and intense unfiltered UV rays. Water is fleeting as soon as snow begins melting away. These are just a few examples of why the alpine is such a difficult place to survive, yet pikas are up to the task.

Pikas are vulnerable to heat exhaustion and death when temperatures exceed 77 degrees, which is a big part of why they prefer to live in the alpine. Climate change is the most significant threat to the future of the pika. They are one of many indicator species that are showing us that something has gone wrong.

Yellowstone is one of the largest volcanoes in the world. Evidence of it’s violent past extend beyond the boundaries, re...
19/12/2022

Yellowstone is one of the largest volcanoes in the world. Evidence of it’s violent past extend beyond the boundaries, reaching as far as the Louisiana Gulf coast, Mexico, and Canada.

Much closer to Yellowstone, Upper Mesa Falls tells a story about an enormous volcanic eruption that occurred 1.3 million years ago. By far the smallest of the most recent super eruptions, it still bellowed out nearly 300 times more debris than the Mount St Helen’s erupution. Huge ash clouds were laid down and overtime formed a rock called tuff, or welded ash. The Italian city of Pompeii was buried in ash, famously turning many of it’s residents into tuff.

At Mesa falls, the Henry’s Fork of the Snake River is cutting away at a 115 foot thick layer of tuff laid down during the Henry’s Fork super eruption.

Kleptoparasite doing what kleptoparasites do. The natural history of the grizzly bear is largely rooted in exploiting th...
09/12/2022

Kleptoparasite doing what kleptoparasites do.

The natural history of the grizzly bear is largely rooted in exploiting the hard work of other predators. Specialist hunters, like wolves, have the skills and tools necessary to subsist on hunting alone. Grizzlies are general opportunists. Capable of hunting, they will take advantage of scenarios where bringing down an animal is a possibility. However, these opportunities are few and far between for the grizzly after the offspring of Yellowstone’s ungulates have matured enough to evade them. Grizzlies then revert to school yard bully mode. What they lack in hunting skills they make up for in brute strength and tenacity.

When a wolf pack brings down, or discovers an ungulate in Yellowstone they immediately begin ripping away flesh and swallowing it with haste. Wolves eat in this fashion because for millennia they have had to cope with the threat of grizzlies inevitably hijacking their kill.

As a keystone species, beavers have impact on ecosystems which is disproportionately significant when compared to other ...
05/12/2022

As a keystone species, beavers have impact on ecosystems which is disproportionately significant when compared to other species. Beavers are nature’s hydrology engineers. While they may not have a college degree, they do have millions of years of experience imprinted in their DNA.

Beavers are masters of water retention. They construct dams and impoundments where there is acceptable habitat. In turn, they slow the rate water will move through a stream course while elevating the water table. Slower water flow results in sediments falling out of moving water and accumulating in the beaver ponds, storing nutrients that would have otherwise been carried away. Also due to slower water flows, beaver dams help to temper the severity of flood events. Expansion of the water table results in water having a further reach beyond a stream bed, creating more wetland/riparian habitat. Riparian/Wetland habitat is comprised of decidous plants like willows, aspens, and cottonwoods, as well aquatic vegetation and grasses. These plants lining the edge of waterways provide shade, mitigating evaporation and high water temperature in the hottest parts of summer.

To name a few of the nearly infinite beaver benefits to an ecosystem, moose heavily utilize beaver areas, and all members of the deer family interact with these areas. Fish benefit from boosted insect productivity and water temperature regulation. Otters, eagles, ospreys, etc benefit from the fish. Migratory birds occupy riparian habitat more than any other habitat in the Yellowstone region. Animals, including humans, downstream of beaver areas benefit by having more water, for longer in the year.

Like many other animals in the Yellowstone region, westward expansion and human interests have not been kind to them. From the fur trade to the politics of water in the west, beavers have been persecuted for hundreds years. Fortunately, places like Grand Teton National Park provide sanctuary and reproduction possibilities for these giant rodents. With the situation in the US today relating to water, we need them more than ever.

Most associate the boa constrictor with the steamy jungles of the tropical americas. But did you know, we have boas in h...
28/11/2022

Most associate the boa constrictor with the steamy jungles of the tropical americas. But did you know, we have boas in high elevation steppes temperate latitudes of North America? The Northern Rubber Boa has the highest latitudinal range of any boa species. Generally they will be found in high steppe desert landscapes, but have been documented at elevations up to 10,000 feet! These amazing little snakes are in of a small handful of reptiles and amphibians that are capable of residing in the Yellowstone region.

Lamar Valley is open for visitation! Flooding and  resultant road damage in the beginning of the summer season restricte...
26/11/2022

Lamar Valley is open for visitation! Flooding and resultant road damage in the beginning of the summer season restricted access for much of that time.

Considered the premiere wildlife viewing area in Yellowstone, Lamar Valley is a snapshot into the end of the Ice age. On its best days, Lamar can produce the kinds of wildlife encounters that are documentary worthy. It is not unusual to see a thousand or more bison in a single vista. Elk, wolves, bears, bighorn sheep, moose, etc also can be found on the landscape.

24/11/2022

Today we are thankful for the Yellowstone Cutthroat! Against all odds, the outlook for theses keystone species is looking good once again.

Cutthroat are a non-anadromous salmonid, meaning that they never come in contact with salt water. They spawn by moving up or down waterways within the Upper Yellowstone Basin. Spawning is not a fatal endeavor, as it is for their ocean going cousins.

Spawning events leave fish vulnerable to predators, drawing large concentrations of wildlife like ospreys, eagles, otters, bears, coyotes, and many others.

Yellowstone National Park has allocated millions of dollars and thousands of hours to pull this species out of the brink of collapse. Prior mismanagement, lack of understanding, climate change, and invasive species have all taken their tole on these fish. But these day, things are looking up!

Yellowstone’s ecosystems are forged by fire and ice. Wildfires have been occurring here for as long as forests have exis...
21/11/2022

Yellowstone’s ecosystems are forged by fire and ice. Wildfires have been occurring here for as long as forests have existed. Plants and animals present today are here because they have learned to cope, and even benefit, from regular fire activity. Fires create a mosaic of different habitats in the wake of their passing. Habitats evolve in time, offering something different ecologically at every stage of regrowth along the way. Mature forests entomb vast quantities of nutrients and molecules that are critical to the development of all things in an ecosystem. In order for there to be new life, old life must recycled. Fires are the most efficient means of recycling as they take living material and turn it into ash, decomposing it in the blink of an eye. At the same time fires are altering the amount of moisture that will be present by burning away developed solids made up of dead organic material. Old growth forests act as a sponge in this way. Disappearance of the canopy is another factor because without shade, evaporation occurs more quickly. Now, conditions are perfect for dark timber to be replaced by beautiful grasslands full of wildflowers, providing excellent forage for insects and animals. Overtime, pioneer species, such as lodgepole pine, aspens, and various shrubs will begin to reclaim these grasslands. Once those plants have matured and died they will contribute to the development of the loamy solids that existed before the fire. Coming full circle, those pioneer species will be overtaken by spruce and fur forests once again.

High above the floor of the Jackson Hole Valley lies the largest remnant glacier that still exists in the Tetons, the Te...
14/11/2022

High above the floor of the Jackson Hole Valley lies the largest remnant glacier that still exists in the Tetons, the Teton Glacier (shown underneath Teewinot mountain in the 2nd photo). Alpine glaciers such as the Teton, are what have helped sculpt the spectacular mountain range into what we see today. The last glacial maximum, known as the Pinedale Glaciation, was peaking about ~23000 years ago. Most of the Yellowstone region was free of ice by around ~10000 years ago, marking the end of the Pleistocene. Around 1400, North America went through a comparatively small climactic shift which was conducive to the expansion of alpine glaciers, known as the Little Ice Age. Glaciers began to flow down the mountains again, further showering away rock and debris from their head cirques. Functioning like bull dozers, glaciers will leave debris piles at there margins. These piles are known as moraines. In the first photo, the recessional moraine left behind by the activity of the Teton glacier during the little ice age is shown from disappointment peak. Moraine features are one of the best ways for scientists to gauge how glaciers have retreated and advanced in the past, and the Teton Glacier is particularly significant because it is one of the largest in the American Rockies. Data gathered at this site help us to understand what are planet is experiencing in modern times pertaining to climate change.

Grizzlies of the GYE will soon be heading for their dens to hibernate through the winter. Grizzlies will generally choos...
11/11/2022

Grizzlies of the GYE will soon be heading for their dens to hibernate through the winter. Grizzlies will generally choose north facing slopes between 8-10k feet of elevation and of relatively steep pitch, usually around 30-40 degrees. This would be equivalent to an black diamond ski run. Choosing a sit with these specifications provides the bears insulation from warm spells that may occur during the winter. North slopes see considerably less UV exposure than other slope aspects so snow is less likely to melt away. High elevations receive more snowfall and stay colder, also mitigating the issue of snow melt. Steep slopes act to help keep snow out of the den, while still allowing the entrance to be concealed to maximize insulation. Grizzlies will usually excavate a new den ever year but sometimes can be found in natural cavities such as: caves, tree root balls from blow down, or anything that suffices.

On another note, this photo very much highlights the main identifying characteristics of grizzly bears. A prominent shoulder hump that gives the bears incredible digging abilities, lighter colored streak around the girth band, small rounded ears, and a dished facial profile.

In the month of December, bull moose will begin with shedding their deciduous antlers. Antlers are the defining trait of...
10/11/2022

In the month of December, bull moose will begin with shedding their deciduous antlers. Antlers are the defining trait of the deer family. In contrast to horned ungulates, which do not shed their horns with one small acceptation in the pronghorn. Antlers are external bone growth which is alive while it’s growing during the summer months, and then dies and becomes hardened once the testosterone spikes of the late summer initiate the shedding of velvet. Horns are permanent, they are essentially a modified fingernail that grows out of the animals head. Like fingernails or hair horns are made of keratin, and will grow continuously throughout the animals life.

Sheep Mountain is an iconic feature on the eastern skyline of the Jackson Hole Valley. Also called Sleeping Indian, the ...
09/11/2022

Sheep Mountain is an iconic feature on the eastern skyline of the Jackson Hole Valley. Also called Sleeping Indian, the giant mountain features a huge alpine grassland that sits above tree-line, dense old growth spruce/fir forests, juniper scrub on the subalpine lower faces, big rocky cliffs, and lots of water. It is critical summer range for many types of animals but especially the Bighorn Sheep that winter in the National Elk Refuge. It is the source of flat creek, which flows through the refuge, and a major feeder to the Gros Ventre river. Because it is largely comprised of landslide/glacial depositions on its shoulders, and sedimentary rocks, it deposits quality soils carried in those water ways. It is geologic formations like this that give Grand Teton National Park, and the rest of the GYE, a robust ecosystem that supports a tremendous amount of biodiversity.

Coyotes, also known as song dogs or prairie wolves, are a medium sized canid species native to North America. They have ...
08/11/2022

Coyotes, also known as song dogs or prairie wolves, are a medium sized canid species native to North America. They have been here in exactly the same form for millennia. They have proven themselves as survivors despite extensive efforts on the part of various government agencies and concerned citizens to remove them from the continent. True rebels of the animal world.

06/11/2022

Dragon's Mouth in Yellowstone's Mud Volcano area has undone some changes as of late. The arch over the cave has been collapsing due to constant exposure to hot steam and corrosive hydrogen sulfide gas. The geothermal of Yellowstone are extremely dynamic. Changes can occur within a split second, or can be gradual.

Kiowa legend includes Dragon's Mouth being the origin of all living things in Yellowstone.


A rather famous sow grizzly and cubs, travels the open sage flats on the floor of Grand Teton National Park. The family ...
05/11/2022

A rather famous sow grizzly and cubs, travels the open sage flats on the floor of Grand Teton National Park. The family was in the midst of a nearly continuous 40+ mile journey to their hibernation area.

It is unlikely they would have been so openly on display at mid-day in the open had it not been for the wet, cool weather typical in late fall.

Gloomy and precipitous days produce some of the best wildlife encounters. Wildlife, especially bears, of the Yellowstone region are unfazed by the type of weather depicted in the photo above; many seem to enjoy it. Spring and Fall bring the perfect kind of weather for wildlife viewing.

These bears traveled a great distance in what seemed to be a desperate maneuver to acquire fat rich foods needed for metabolism during hibernation and milk production, In other words surviving winter.

Birthing or breeding, migration between summer and winter ranges, increasing or diminishing food availability and quality, arrival or departure of biting insects, retreating or expanding snow coverage, along with a myriad of other happenings. Activity apexes in these transitional times as animals adapt to their changing circumstances and prepare for feast or famine.

September in the Tetons
27/09/2022

September in the Tetons

We're thrilled be back in Yellowstone! We've had some great trips since the South Gate has reopened and are excited to g...
01/07/2022

We're thrilled be back in Yellowstone! We've had some great trips since the South Gate has reopened and are excited to get back onto the Northern Loop soon.

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