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Continue to ChatMarsh Creek 1007-002 Dam Map - Contra Costa County, CA https://www.yellowmaps.com/usgs/topo.cfm?map=ca-1664124-marsh-creek-1007%2D002-dam
Marsh Creek 1007-002 Dam Map - Contra Costa County, CA https://www.yellowmaps.com/usgs/topo.cfm?map=ca-1664124-marsh-creek-1007%2D002-dam