Photograph of an Eastern Chipmunk, a type commonly found at Saint-Gaudens NHS.

The brooks, ponds, numerous seeps, fields, and woodlands offer plenty of shelter and habitat for the more than thirty mammal species found at Saint-Gaudens NHS. Some of the more common sightings are of White-tailed Deer, Eastern Chipmunks, and Gray Squirrels. Less frequent sightings of mink, fisher, and beaver are possible around the Mill Pond and its tributaries. On rare occasions Moose or Black Bear may be seen. Also present in the park are several types of mice and shrews along with Eastern Coyote, Woodchuck, Porcupine, and Red Fox.