California Wetlands Information System

Vernal Pools




Vernal pools are seasonally flooded depressions found on ancient soils with an impermeable layer such as a hardpan, claypan, or volcanic basalt.


* Vernal Pools: Their History and Status in California's Central Valley
* Interagency Vernal Pool Initiative Framework Agreement
* Statewide Vernal Pools Map
* Vernal Pool Assessment Preliminary Report from the Department of Fish and Game

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