Collection place
- North America225 objects
- The Americas225 objects
- United States211 objects
- California157 objects
- Northern California105 objects
- Northwestern California68 objects
- Central California30 objects
- South Central California30 objects
- Southwestern United States30 objects
- Northeastern California22 objects
- Great Basin, United States18 objects
- Nevada15 objects
- North Central California15 objects
- Southern California14 objects
- Humboldt County, California13 objects
- Needles area, San Bernardino County, California11 objects
- Needles, San Bernardino County, California11 objects
- San Bernardino County, California11 objects
- Klamath River, Humboldt County, California9 objects
- Northwestern United States9 objects