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Collection place
- North America4,564
- The Americas4,564
- United States4,539
- California4,526
- Northern California3,086
- North Central California2,933
- CA-Yol-13 (Mustang Mound), Yolo County, California1,289
- Yolo County, California1,289
- Sacramento County, California1,131
- San Francisco Bay Area, California760
- San Joaquin County, California382
- Contra Costa County, California381
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California377
- CA-Sac-6, Sacramento County, California377
- Southern California323
- CA-CCo-138, Oakley, Contra Costa County292
- Oakley, Contra Costa County, California292
- Santa Barbara County, California285
- Northern Channel Islands, Santa Barbara County, California280
- Santa Rosa Island, Santa Barbara Channel Islands, Southern California255