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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.
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...
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. Line representation of streams and rivers in Sacramento County. Sacramento Area Council of Governments.
2010. Sacramento County GIS. Ponds and lakes. Derived from orthophotography and USGS topographic quad sheets.
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...
2010. Placer County (Calif.) -- Community Development Resource Agency. This polyline dataset shows all natural stream names and locations within Placer County, California as of 2010. Original coverage was compiled from...
8. Water Bodies
2010. UC Berkeley and Regional Water Quality Control Board LIDAR project (Napa River Watershed data). Water Bodies. Napa County (Calif.). County Of Napa.