Columbian ground squirrel
This Rocky Mountain ground squirrel forms colonies in sage or grass openings. Day active, defending nests from others.
In the NPS atlas of species the expedition described
Columbian ground squirrel
Discovered at Camp Chopunnish. This Rocky Mountain ground squirrel forms colonies in sage or grassy openings. They are active during the day defending their nests from others.
Encyclopedia of Life page for Columbian ground squirrel (opens in a new tab) On the atlas map
Source: National Park Service, Lewis and Clark National Historic Trail Park Atlas.
Where it’s being seen today
2 research-grade iNaturalist observations between 2021–2025. Most recent: 2025-06-23. Sourced from Terrain360 trail captures, cached locally.
Journal References
15 journal entries mention Columbian ground squirrel