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2010. Teale Data Center. California Watershed Map: Version 2.2. This layer is composed of polygons at depict the boundary of the various watershed areas in Napa County. Napa County (Calif.). County Of Napa.
2007. Office of Emergency Services. Dam Inundation maps for the State of California are required by California Government Code Section 8589.5(b).
Inundation potential to cause damage... Sacramento (Calif.). Office Of Emergency Services.
2010. County of Sonoma, Permit and Resource Management Department [PRMD] - Engineering, Drainage Review. The flood prone dataset represents a geographical area known as the Permit and Resource Management Department (PRMD) Flood Prone Ordinance 4467. Fl...
2011. Federal Emergency Management Agency. This polygonal dataset shows flood zones within Butte County, California. The Flood Zones file was given to Butte County GIS Division from Butte Co... Butte County (Calif.) -- Geographic Information Systems.
2010. County of Napa Conservation, Development Planning Department. Historic tidal wetlands along the San Francisco Bay as mapped from 1851 to 1897. Napa County (Calif.). County Of Napa.
2010. Sacramento County GIS. Ponds and lakes. Derived from orthophotography and USGS topographic quad sheets.
2016. San Benito County (Calif.) -- Information Technology. This polygon dataset shows all existing lakes and reservoirs within San Benito County, California as of 2016. Hydrology representing major hydrolog...
2016. Fresno County (Calif.). Department of Public Works and Planning. This polygon dataset shows all existing lake waterbodies within Fresno County, California for 2016.
2011. Mono County (Calif.) -- Information Technology. This polygon dataset shows all existing lake waterbodies within Mono County, California in 2011. .
2010. Placer County (Calif.) -- Community Development Resource Agency. This polygonal dataset shows all existing lakes within Placer County as of 2010. Original coverage was compiled from several 1:24000 USGS quadrangl...