Photos from the field.

East River Valley, Colorado. Home of the Rocky Mountain Biological Laboratory, and site of long-term research on Golden-mantled ground squirrels (Callospermophilus lateralis).

The resident red fox often raises her kits underneath Red Rock cabin.

Litter of golden-mantled ground squirrel pups, emerging from their natal burrow

Jackie, Summer, and Rachel (graduate student at Colorado State University) take measurements on a newly emerged pup.

Baiting live traps for squirrels around the RMBL parking lot.

Clouds over Mt. Crested Butte

Running standardized behavioral assays to study golden-mantled ground squirrel behavior at RMBL