This polygon shapefile was derived from the U.S. Fish and Wildlife Service and California Department of Fish and Game's Holland's Central Valley Vernal Pools coverage data. These data represent the portion of Holland's Central Valley Vernal Pools polygon coverage that is within the watershed boundaries of the Russian River basin. This layer can be used for watershed analysis and planning in the Russian River region of California. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Vernal Pools: Holland's Central Valley, Russian River Basin, California, 1998. Circuit Rider Productions. Available at: http://purl.stanford.edu/hf716sd7230 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.