Mammals

A Rocky Mountain goat stands on a large lichen-covered granite outcrop with light clouds and a blue sky in the background.
A Rocky Mountain goat stands on a large granite outcrop.

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Rocky Mountain Goat

(Oreamnos americanus)

Rocky Mountain Goats demand a very specialized habitat. These skillful climbers inhabit the craggy granite core of the Black Hills. Mountain goats are not native to the Black Hills. The population can be traced to six goats, a gift to Custer State Park by Canada in 1924, that escaped from their pens and found their home among the Black Hills granite peaks. There are now more than 200 mountain goats in the area. They have long, shaggy white coats that contrast sharply with their black horns, nose and hooves. The mountain goat's hooves are very soft on the bottom, allowing them to climb very steep terrain.

 
A mule deer standing with eyes, ears and nose pointing straight at the photographer in front of pine trees.
A mule deer with eyes, ears and nose pointing straight at you.

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Mule Deer

(Odocoileus hemionus)

Mule deer are commonly seen near Mount Rushmore. They spend summer days in the shade, moving and feeding during the early morning and late evening hours. In winter, they become more active during the warmer daylight hours. Mule deer eat a wide variety of grasses, wildflowers, shrubs, and parts of trees.

 
A yellow-bellied marmot looking at the photographer as it scrambles over lichen-covered rocks near the base of Mount Rushmore.  Brown pine needles are scattered on the ground.
A yellow-bellied marmot scrambles through rocks near the base of Mount Rushmore.

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Yellow-bellied Marmot

(Marmota flaviventris)

Yellow-bellied marmots can be seen along the Presidential Trail during the summer as they feed on grasses, broad-leaved plants and seeds. Marmots are true hibernators and are not active from late October until late April.

 
A least chipmunk with dark brown and white stripes running from its nose to the base of its tail facing to the left while exploring a piece granite at Mount Rushmore.
A least chipmunk exploring a piece granite at Mount Rushmore.

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Least Chipmunk

(Tamias minimus)

The least chipmunk (below) is a small member of the squirrel family. They can be seen bounding around all parts of Mount Rushmore, usually moving very quickly. Chipmunks do not hibernate and feed year round on the fruits and grains of many plants, seeds from pine trees, and insects.

 
A red squirrel with a white belly sitting upright on its back legs holding a pine cone with its front feet.  Snow covers the ground in front of the squirrel and large ponderosa pine trunks are in the background.
A red squirrel carries a pine cone in the snow.

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American Red Squirrel

(Tamiasciurus hudsonicus)

Red squirrels like to live in dense stands of mature trees, like the ponderosa pines found at Mount Rushmore. They harvest green pine cones to store for later eating, especially during winter. When available, red squirrels also eat tree buds, flowers, fruits, mushrooms, insects, and occasionally small mammals and bird eggs and nestlings.

Last updated: January 23, 2023

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Contact Info

Mailing Address:

13000 Highway 244
Building 31, Suite 1

Keystone, SD 57751

Phone:

605 574-2523
Park information. Phones are answered from 8:00 a.m. to 4:30 p.m. Monday through Friday.

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