Collection place
- Napa County, California121
- CA-CCo-295, Richmond, Contra Costa County117
- CA-Sac-107 (Windmiller Mound), Sacramento County, California113
- Lindsey Slough, Solano County, California109
- CA-CCo-300, Richmond, Contra Costa County93
- CA-Ala-309, Emeryville, Alameda County87
- Emeryville, Alameda County, California87
- Berkeley, Alameda County, California84
- CA-Ala-307, Berkeley, Alameda County83
- West Berkeley, Berkeley, Alameda County83
- CA-SJo-68, San Joaquin County, California79
- CA-Sac-16 (Bennet Mound), Sacramento County, California79
- Napa Valley, Napa County, California75
- CA-Sol-2, Solano County, California70
- Santa Rosa Plain, Sonoma County, California68
- Santa Rosa, Sonoma County, California68
- Vallejo area, Solano County, California59
- Middle Napa Valley, Napa County, California57
- CA-Sol-236 (Glen Cove), Vallejo, Solano County56
- Glencove, Solano County, California56