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Yellowstone National ParkVisitors enjoy a stroll along a boardwalk near a thermal feature.
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Yellowstone National Park
Mammal Checklist

More than 60 mammals live in Yellowstone, The map below shows the most likely places to see the big mammals and the checklist below the map gives more information. Remember what you see will vary with the weather, season, and behavior of the animals. You might see these and other animals in other places in the park, or you might not see any at all. Enjoy looking for and watching wildlife.

Map of Yellowstone with mammals drawn where they are generally located.







Bears, Cats, Dogs, Raccoons, & Weasels


Pikas, Hares, Rabbits

Black Bear
forests, meadows 500–650   Snowshoe Hare
forests, willows common
Grizzly Bear
forests, meadows 280–610   White-tailed Jackrabbit
sagebrush, grasslands common
forests, meadows, grasslands common   Desert Cottontail
shrub lands common
Gray Wolf
forests, meadows >100   Mountain Cottontail
shrub lands common
meadows occasional   Pika
rocky slopes
forests, meadows
may be widespread  


mountains, rocky areas 15–17   Dusky Shrew

moist meadows, forests common
subalpine forests few   Masked Shrew

moist meadows, forests common
rivers, cottonwoods rare   Water Shrew

moist meadows, forests common
sagebrush common   Preble’s Shrew

moist meadows, forests rare, if present
forests rare, if present   Dwarf Shrew
moist meadows, forests rare
coniferous forests common  

Beaver, Squirrels, Gopher, Mice, Porcupine

riparian forests occasional   Beaver
ponds, streams 500
River Otter
rivers, lakes, ponds common   Least Chipmunk
forests common
Striped Skunk
riparian to forest rare   Uinta Chipmunk
forests common
Long-tailed Weasel
willows to spruce/fir forests common   Yellow Pine Chipmunk
forests common
Short-tailed Weasel
willows to spruce/fir forests common   Yellow-bellied Marmot
rocky slopes common
Wolverine alpine, coniferous forests rare   Golden-mantled
Ground Squirrel
forests, rocky slopes common

Hoofed Mammals

  Northern Flying Squirrel
forests occasional
Elk (Wapiti)

meadows, forests 15,000–25,000   Red Squirrel
forests common

riparian, forests <500   Uinta Ground Squirrel
sagebrush, meadows common
Mule Deer

forests, grasslands, shrub lands 2,300–2,500   Northern Pocket Gopher
sagebrush, meadows, forests common
White-tailed Deer

forests, grasslands, shrub lands occasional   Deer Mouse
grasslands common

meadows, grasslands >3,500   Western Jumping Mouse
riparian occasional
Bighorn Sheep
cliffs, mountain slopes 250–275   Muskrat
streams, lakes, ponds common
Mountain Goat
alpine meadows, rocky slopes 175–225   Heather Vole
sagebrush to forests occasional

sagebrush, grasslands 200–250   Long-tailed Vole
moist meadows


  Meadow Vole
moist meadows common
Big Brown Bat
roost in sheltered areas common   Montane Vole
moist meadows common
Fringe-tailed bat
roost in cliffs, large snags uncommon   Red-backed Vole
dense forests common
Hoary Bat
roost in trees uncommon   Water Vole

riparian occasional
Little Brown Bat
roost in caves, buildings, trees common   Bushy-tailed Woodrat
rocky slopes common
Long-eared Bat
roost in cliffs, buildings uncommon   Porcupine

forests, sagebrush, willows common
Long-legged Bat
roost in tree cavities, cliffs, buildings common        
Silver-haired bat
roost in trees, including snags common        
Western small-footed Bat
roost in rocky areas, caves rare, if present        
Townsend’s Big-eared Bat
roost in caves uncommon        
Yuma Bat
roost in caves, buildings, trees rare, if present        

The Mammal Checklist is also available in pdf format (560 kb pdf)
Upper Geyser Basin Hydrothermal Features on a Winter Day.  

Did You Know?
Yellowstone contains approximately one-half of the world’s hydrothermal features. There are over 10,000 hydrothermal features, including over 300 geysers, in the park.

Last Updated: April 23, 2009 at 08:28 EST