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2009. California. Department of Fish and Game. Marine Resources Region. This polygon shapefile depicts the extent of area affected by the top twenty areas of stormwater discharge in the Southern California Bight. The or... California. Department of Fish and Game. Marine Resources Region.
2009. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile depicts a dissolve that was run on the planning watersheds for the nine county San Francisco Bay Area Region, California. Pl... Bay Area Open Space Council.
2017. Sierra Nevada Conservancy. Sierra Nevada Conservancy (SNC) subregions boundary. The boundary was mapped to correspond with statute AB 2600 (2004) and as re-defined in AB 1201... Sierra Nevada Conservancy.
2015. Santa Clara Valley Water District (Calif.). This polygon shapefile depicts boundaries of Stormwater Runoff Catchments for outfalls greater than or equal to 18 inches in diameter, in the Count... Santa Clara Valley Water District (Calif.).
2013. Wyoming Geographic Information Sciences Center. This polygon shapefile contains the 6th level, 12-digit hydrologic unit code (HUC) sub-watershed boundaries of California. This layer consists of g... Wyoming Geographic Information Sciences Center.
2009. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile depicts a dissolve that was run on the super planning watersheds for the nine county San Francisco Bay Area Region, Californ... Bay Area Open Space Council.
2015. Santa Clara Valley Water District (Calif.). This polygon shapefile depicts boundaries of Major Watersheds in the County of Santa Clara, California. The Santa Clara Valley Water District manag... Santa Clara Valley Water District (Calif.).
2019. Riverside County (Calif.). Geographic Information Services. Watersheds These data are made available as a public service. The data is for reference purposes only, and the originator(s) make no representative... Riverside County (Calif.). Geographic Information Services.