- North America64 objects
- The Americas64 objects
- United States✖Remove constraint Collection place: United States64 objects
- California47 objects
- San Francisco Bay Area, California38 objects
- San Francisco County, California37 objects
- San Francisco Waterfront, San Francisco, San Francisco County37 objects
- San Francisco, San Francisco County, California37 objects
- Site N-5 (North Shore Pump Station), San Francisco Waterfront, San Francisco18 objects
- Site C-4 (South Side), San Francisco Waterfront, San Francisco8 objects
- Northern California7 objects
- Michigan6 objects
- Northwestern California6 objects
- Site C-1 (Berry), San Francisco Waterfront, San Francisco6 objects
- Southern Great Lakes states, United States6 objects
- Detroit, Wayne County, Michigan5 objects
- Wayne County, Michigan5 objects
- CA-Hum-169 (Tsurai), Humboldt County, California4 objects
- Humboldt County coast, Humboldt County, California4 objects
- Humboldt County, California4 objects