Form colonies in mountainous terrain, in rock slides, talus slopes, and large boulders near meadows or vegetation patches. Usually above timberline but occasionally in forested valleys and near sea level (MacDonald and Jones 1987). Near Lake Louise, pikas were found in a forested valley of white spruce-birch- willow more than 180m from talus; burrows were in rocks scattered among the trees (Rausch 1962).
MacDonald, S.O. and C. Jones. 1987. Ochotona collaris. Am. Soc. Mammal. Mammal. Species, No. 281.
Rausch, R. L. 1962. Notes on the collared pika, Ochotona collaris (Nelson), in Alaska. Murrelet 42: 22-24.