EarthWorks Geospatial Catalog

Vernal Pools Regions: California, 1998

Description
This polygon shapefile depicts boundaries for vernal pool regions throughout California.This coverage is a polygon layer of vernal pool complexes in California. In 1995, Dr. Robert F. Holland identified the complexes on aerial photos (the most recent available for each county) and traced the polygons onto USGS 7.5' quads from which they were digitized. Vernal pool complexes were then given a density rating. The coverage was refined in June of 1998, with SPOT Imagery and recent U2 (low-flying aircraft) photography. The layer does not contain delineations of individual vernal pools and was not intended for use in wetland delineations. This coverage allows for assessment of vernal pool areas in California state-wide.
Publisher
California. Department of Fish and Game. Marine Resources Region
Place(s)
California
Subject(s)
Vernal pools, Wetlands, Vernal pool ecology, Biology and Ecology, and Environment
Year
1998
Held by
Stanford
More details at
Use and reproduction
This item is in the public domain. There are no restrictions on use.
Copyright
This work is in the Public Domain, meaning that it is not subject to copyright.
Attribute Value
Click on map to inspect values