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FishNet 2
USGS NAS| HUC Code | Watershed Name | Occurrence | Source |
| 18020101 | Sacramento-Lower Cow-Lower Clear | Historic | NatureServe |
| 18020102 | Lower Cottonwood | Historic | NatureServe |
| 18020103 | Sacramento-Lower Thomes | Historic | NatureServe |
| 18020104 | Sacramento-Stone Corral | Historic | NatureServe |
| 18020105 | Lower Butte | Historic | NatureServe |
| 18020106 | Lower Feather | Historic | NatureServe |
| 18020108 | Lower Bear | Historic | NatureServe |
| 18020109 | Lower Sacramento | Historic | NatureServe |
| 18020110 | Lower Cache | Historic | NatureServe |
| 18020111 | Lower American | Historic | NatureServe |
| 18020118 | Upper Cow-Battle | Historic | NatureServe |
| 18020119 | Mill-Big Chico | Historic | NatureServe |
| 18020120 | Upper Butte | Historic | NatureServe |
| 18020124 | Honcut Headwaters | Historic | NatureServe |
| 18020126 | Upper Bear | Historic | NatureServe |
| 18020127 | Upper Coon-Upper Auburn | Historic | NatureServe |
| 18030012 | Tulare-Buena Vista Lakes | Historic | NatureServe |
| 18040001 | Middle San Joaquin-Lower Chowchilla | Historic | NatureServe |
| 18040002 | Middle San Joaquin-Lower Merced- Lower Stanislaus | Historic | NatureServe |
| 18040003 | San Joaquin Delta | Current | NatureServe |
| 18040004 | Lower Calaveras-Mormon Slough | Historic | NatureServe |
| 18040005 | Lower Consumnes-Lower Mokelumne | Historic | NatureServe |
| 18050001 | Suisun Bay | Historic | NatureServe |
| 18050002 | San Pablo Bay | Historic | NatureServe |
| 18050003 | Coyote | Historic | NatureServe |
| 18050004 | San Francisco Bay | Historic | NatureServe |
| 18060002 | Pajaro | Historic | NatureServe |