Collection place
- Aberdeen, Grays Harbor County, Western Washington1 objects
- Alaska4 objects
- American Museum of Natural History, New York, New York County12 objects
- British Columbia, Canada123 objects
- California11 objects
- Canada127 objects
- Cape Flattery, Clallam County, Western Washington1 objects
- Carson City County, Nevada1 objects
- Carson City, Carson City County, Nevada1 objects
- Celilo, Wasco County, Oregon1 objects
- Central Oregon20 objects
- Central Washington2 objects
- Chehalis County, Washington22 objects
- Chemeketa, Polk County, Western Oregon1 objects
- Clallam County, Western Washington20 objects
- Clatsop County, Oregon1 objects
- Clayoquot, Vancouver Island, British Columbia1 objects
- Columbia River Basin, United States5 objects
- Columbia River, Oregon and Washington15 objects
- Concrete, Skagit, Skagit County3 objects