• The Cathedral Group from the Teton Park Road

    Grand Teton

    National Park Wyoming

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  • Bears are active in Grand Teton

    Black and grizzly bears are roaming throughout the park--near roads, trails and in backcountry areas. Hikers and backcountry users are advised to travel in groups of three or more, make noise and carry bear spray. Visitors must stay 100 yards from bears. More »

  • Area closure in effect for trails in the Jenny Lake Area

    A temporary area closure will be in effect for several trails in the Jenny Lake area due to construction activities involving helicopter-assisted transport of heavy material. The closure will last from October 27 through October 30, and possibly longer. More »

  • Multi-use Pathway Closures

    Intermittent closures of the park Multi-use Pathway System will occur through mid-October during asphalt sealing and safety improvement work. Pathway sections will reopen as work is completed. Follow the link for a map and more information. More »

  • Moose-Wilson Road Status

    The Moose-Wilson Road between the Death Canyon Road and the Murie Center Road is currently open to all traffic. The road may re-close at any time due to wildlife activity. For current road conditions call 307-739-3682. More »


A young moose calf in the willows, photo copyrighted by Dan Ng
A young moose calf rests in the willow flats near Jackson Lake.
Photo copyright Dan Ng

Mammals are special to us. They inspire our imaginations and thrill our senses. They are big and small, inquisitive and reclusive. They are always engaging and thrilling to see.

Sixty-one species of mammals live beneath the towering peaks of the Teton Range. They are found in each of the four major communities in the park: alpine, forest, sagebrush flats, and wetlands.

Mammals have two characteristics that separate them from other animals. They have hair and they nurse their young. Mammals also have other characteristics that allow them to thrive in almost any environment. They are warm-blooded relying on metabolism to maintain a constant body temperature instead of their surroundings. Mammals have well-developed sensory systems and specialized teeth that allow them to find and eat different foods. They can climb, swim, run, glide, and fly allowing mammals to inhabit a variety of niches in every ecosystem. Mammals also focus their energy to raise only a few young to ensure their survival rather than produce vast numbers of offspring. These characteristics allow mammals to adapt to almost every environment found on Earth.

In Grand Teton National Park, most wildlife watchers are in search of mammals. Look for large ungulates like moose, elk, mule deer, bison, and pronghorn from roadside vantage points. Large predatory mammals like grizzly and black bears, wolves and mountain lions are typically more elusive. Uinta ground squirrels, least chipmunks and red squirrels are common on the valley floor, but badgers, pine martens, long-tailed weasels, and wolverines are difficult to find. As you hike through rocky areas, watch for pikas, yellow-bellied marmots and golden mantled ground squirrels. In the waters of the park, you may spy a muskrat, beaver, or river otter swimming along.

No matter where you go in Grand Teton National Park, a mammal will not be far away. Their ability to adapt has allowed them to thrive throughout the park, and their presence brings a sense of excitement to this beautiful place.

Related Information

Mammal-Finding Guide

Wildlife Viewing

Did You Know?

Uinta Ground Squirrel

Did you know that Uinta ground squirrels, sometimes mistaken for prairie dogs, hibernate up to eight months a year? These animals leave their burrows in March or April to inhabit the sagebrush flats, but may return by the end of July.