- North America604 objects
- The Americas604 objects
- United States604 objects
- California498 objects
- Humboldt County, California309 objects
- Northern California309 objects
- Northwestern California309 objects
- Humboldt Bay, Humboldt County, California292 objects
- Gunther Island, Humboldt Bay, Humboldt County282 objects
- CA-Hum-67 (Tolowot), Humboldt County, California281 objects
- San Francisco Bay Area, California189 objects
- Churchill County, Nevada106 objects
- Nevada106 objects
- NV-Ch-18 (Lovelock Cave), Churchill County, Nevada103 objects
- Contra Costa County, California59 objects
- Marina Bay, Richmond, Contra Costa County51 objects
- Richmond, Contra Costa County, California51 objects
- CA-CCo-300, Richmond, Contra Costa County49 objects
- CA-Sol-236 (Glen Cove), Vallejo, Solano County42 objects
- Glencove, Solano County, California42 objects