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Collection place
- Sacramento County, California3
- San Francisco Bay Area, California648
- San Gabriel municipality, Jalisco, Mexico2
- San Joaquin County, California8
- San Mateo County, California385
- San Nicolas Island, Southern Channel Islands, Ventura County4
- San Pablo (PV 57-52), Chincha Valley, Lima Region1
- San Pedro, Tolimán Municipality, Jalisco1
- San Vicente, Apatzingan, Apatzingán1
- Santa Barbara (City), Santa Barbara County, California19
- Santa Barbara County, California150
- Santa Cruz Island, Channel Islands, Southern California116
- Santa Monica Mountains, Los Angeles County, California1
- Santa Rosa Island, Santa Barbara Channel Islands, Southern California1
- Scandinavia6
- Siskiyou County, California20
- Site C113 (Nomland), Bolivar Department, Colombia1
- Smugglers Cove, Santa Cruz Island, Channel Islands14
- South America29
- South Central California2