• Steam rises off of the colorful Mammoth Hot Springs Terraces. Photo courtesy Jacob W. Frank


    National Park ID,MT,WY

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.

Mammal Checklist





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

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