- North America8 objects
- The Americas8 objects
- United States8 objects
- California7 objects
- Lower Klamath Lake Area, Siskiyou County, California7 objects
- Lower Klamath Lake, Siskiyou County, California7 objects
- Northeastern California7 objects
- Northern California7 objects
- Siskiyou County, California7 objects
- CA-Sis-223, Lower Klamath Lake, Siskiyou County6 objects
- CA-Sis-239, Lower Klamath Lake, Siskiyou County1 objects
- NV-Wa-44, Washoe County, Nevada1 objects
- Nevada1 objects
- Washoe County, Nevada1 objects