This chipmunk lives high in California's Sierra Nevada, among rocky slopes and subalpine forest.
Its pale yellow-gray coat has softly contrasting stripes. The side stripes are reddish or brown, and the underside is bright orange.
It is active by day and retreats into deep rock crevices during hot weather. It breeds once a year and nests in rock crevices.
An extinction-risk assessment has not been added yet.