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
Department of Fish and Game
This file last modified on: Tuesday, July 24, 2007.
Document URL: http://ceres.ca.gov/wetlands/geo_info/vernal_pools.html
Copyright © 1997 California Resources Agency. All rights reserved.