Elk (also known as wapiti), mule deer, and pronghorn (also called pronghorn antelope) are some of the most commonly seen large mammals. During winter, pronghorn that spend the summer in the Sawtooth Valley migrate south to the lower elevations on the Snake River Plain, and some sections of the forest are closed to motorized use to protect the elk winter range. Bighorn sheep are rare sights in the forest, but the forest contains one-third of Idaho's mountain goat population, and they are commonly seen at high elevations in the Boulder, White Cloud, Pioneer, and Sawtooth mountains. Other mammals in the forest include the coyote, moose, bobcat, beaver, yellow-bellied marmot, pika, and badger.