The mountain lion is the largest feline in North America. Although not commonly seen, they persist in stable densities throughout Glacier. Read about mountain lion safety before hitting the trail. As one of Glacier’s larger predators, mountain lions pursue a wide variety of prey, including deer, elk, moose, and bighorn sheep, as well as smaller animals. They usually hunt at night, dawn, or dusk, and after a successful hunt, will hide large carcasses and feed on them for several days.