Collection place
- California928 objects
- North America928 objects
- Northeastern California928 objects
- Northern California928 objects
- The Americas928 objects
- United States928 objects
- Siskiyou County, California874 objects
- CA-Sis-7, Lava fields, Siskiyou County457 objects
- Canby's Cross, Lava fields, Siskiyou County457 objects
- Lava fields, Siskiyou County, California457 objects
- Lower Klamath Lake Area, Siskiyou County, California414 objects
- Lower Klamath Lake, Siskiyou County, California414 objects
- CA-Sis-11, Lower Klamath Lake, Siskiyou County219 objects
- Northeast Lower Klamath Lake, Siskiyou County, California219 objects
- CA-Sis-10, Oklahoma Landing and Fleming Islands, Lower Klamath Lake195 objects
- Modoc County, California54 objects
- Tule Lake, Modoc County, California54 objects
- Scorpion Ridge, Tule Lake, Modoc County51 objects
- CA-Sis-6, Siskiyou County, California3 objects
- Glass Mountain, Siskiyou County, California3 objects