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Continue to ChatPatterson 1065 Dam Map - Alameda County, CA https://www.yellowmaps.com/usgs/topo.cfm?map=ca-1664216-patterson-1065-dam
Patterson 1065 Dam Map - Alameda County, CA https://www.yellowmaps.com/usgs/topo.cfm?map=ca-1664216-patterson-1065-dam