2005. Department of Conservation & Development, Contra Costa County. This dataset represents the Creeks' Drainages within Contra Costa, California. Latest data revision occurred in August 2005; Data was mapped and pr...
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2005. Department of Conservation & Development, Contra Costa County. This dataset represents the Water Bodies within Contra Costa, California. Latest data revision occurred in May 2005; Data was mapped and provided b...
2015. Department of Conservation & Development, Contra Costa County. This dataset represents the watersheds within Contra Costa, California; Data was mapped and provided by the DCD GIS/Graphics Group within the Depar...