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Start Over Subject Coasts Theme Geology Creator Manson, Michael W.
2006, 2007, 2008, and 2009. Manson, Michael W., Johnson, Samuel Y., Hartwell, Stephen R., Pacific Coastal and Marine Science Center, and Golden, Nadine E. This polygon shapefile represents geologic features in the offshore area of Fort Ross, California. The morphology and the geology of the offshore p... Geological Survey (U.S.).