They work their nest and burrow system into soil found under and between boulders to keep out predators. They live in groups, or harems , defended by a dominant male. Each harem usually consists of more female members than male. Hibernation starts as early as August for some of these rodents, depending on their location. 1 litter per year on average.
Females give birth in the spring.
The young spend the summer with their mother and may hibernate with her. Sexual maturity is reached after 2 years, but most don't mate until about 3 years. At least 3 years. Diet Native forbs, grasses, sedges, clovers, and alfalfa. Predators Eagles, badgers, grizzly bears, wolves, and mountain lions.