Golden-mantled Ground Squirrels ran up the Sunrise Tail in Mount Rainier National Park on 21 September 2016. This rodents are common in the Rocky Mountain West. I am surprised this post is my first for the species.
These ground squirrels lack the facial stripes of chipmunks. They hyburnate in burrows during the winter. They collect seeds and other vegetation in cheeck pouches, storing some of their food in their burrows. They have litters of four to six young in the summer. Ground squirrels are imported prey items for hawks and various larger mammals (Wikipedia).