Collection place
- Northeastern California40 objects
- Eastern California38 objects
- Inyo County, California38 objects
- Yolo County, California37 objects
- CA-Yol-13 (Mustang Mound), Yolo County, California36 objects
- Napa Valley, Napa County, California35 objects
- Lower Napa Valley, Napa County, California33 objects
- Sacramento County, California33 objects
- Mexico32 objects
- CA-Nap-16, Napa Valley, Napa County29 objects
- San Mateo County, California28 objects
- Contra Costa County, California24 objects
- CA-SCrI-3, Santa Cruz Island, Channel Islands22 objects
- Northern Mexico19 objects
- Northwest Mexico19 objects
- Marin County, California18 objects
- CA-SMa-151 (Phleger Mound), Princeton, San Mateo County17 objects
- Half Moon Bay, San Mateo County, California17 objects
- Princeton, San Mateo County, California17 objects
- Nevada16 objects