Collection place
- North America907 objects
- The Americas907 objects
- United States907 objects
- California899 objects
- Northern California790 objects
- North Central California403 objects
- Northeastern California243 objects
- Northern Sierras, Northern California199 objects
- Northwestern California144 objects
- Mendocino County, California143 objects
- Round Valley, Mendocino County, California142 objects
- Butte County, California95 objects
- Eastern California74 objects
- Sierra Nevada Mountain Range, California74 objects
- Big Chico Creek watershed, Butte County, California57 objects
- Chico, Butte County, California57 objects
- Plumas County, California49 objects
- El Dorado County, California30 objects
- South Fork of American River, El Dorado County, California24 objects
- Lassen County, California19 objects