Yellow-pine chipmunks favor open, sunny conifer forest and rocky clearings, and Yellowstone National Park alone carries 46 of Wyoming’s named sightings, more than double Grand Teton’s 18, tracing the lodgepole and Douglas-fir stands that dominate the region’s forested high country.
Records climb sharply into an August peak, more than 70 times the April low, and vanish completely from November through March, tracking the short active season when this day-active chipmunk forages for seeds before a long winter of hibernation. NatureServe ranks the species S3, vulnerable, in Wyoming, notably more cautious than its secure global status, a state-level distinction worth noting given how commonly this chipmunk turns up in Yellowstone’s forests.
Full species profile
