2014. Geological Survey (U.S.). This polygon shapefile contains the county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands, by showing the counties as ar... Geological Survey (U.S.).
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2014. Geological Survey (U.S.). This polygon shapefile contains the boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was created by extract... Geological Survey (U.S.).
2014. Geological Survey (U.S.). This polygon shapefile represents waterbodies and wetlands of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was produc... Geological Survey (U.S.).
2005. King, Philip B., Arndt, Raymond E., Schruben, Paul G., Bawiec, Walter J., and Beikman, Helen M. This line shapefile shows the outlines of major calderas and impact structures in the United States. This layer is part of the Geologic Map of the ... Geological Survey (U.S.).
1980. Geological Survey (U.S.). This polygon shapefile contains the 1980 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).
1990. Geological Survey (U.S.). This polygon shapefile portrays the 1990 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).
2000. Geological Survey (U.S.). This polygon shapefile portrays the 2000 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).
2005. Reed, John Calvin, Jr. 1930- and Bush, Charles A. This polygon shapefile contains polygon boundaries, tags and labels for major geologic units in Alaska, Hawaii, Puerto Rico and the U.S. Virgin Isl... Geological Survey (U.S.).
1974. King, Philip B., Arndt, Raymond E., Schruben, Paul G., Bawiec, Walter J., and Beikman, Helen M. This polygon shapefile shows the boundaries of geologic units within the United States. This layer is part of the Geologic Map of the United States... Geological Survey (U.S.).
2006. Pacific Coastal and Marine Science Center, Manson, Michael W., Greene, H. G., and Golden, Nadine E. This polygon shapefile represents geologic features of Drakes Bay and the surrounding vicinity of California. Marine geology and geomorphology were... Geological Survey (U.S.).
2012. Ritchie, Andrew C., Johnson, Samuel Y., Clahan, Kevin B., Pacific Coastal and Marine Science Center, and Golden, Nadine E. This polygon shapefile represents geologic features of Hueneme Canyon and the surrounding vicinity in California. The offshore map area is characte... Geological Survey (U.S.).
2006. Johnson, Samuel Y., Hartwell, Stephen R., Manson, Michael W., Pacific Coastal and Marine Science Center, and Golden, Nadine E. This polygon shapefile represents geologic features of the offshore area of Bodega Head in California. The morphology and the geology of the map ar... Geological Survey (U.S.).
2006. Endris, Charles A., Watt, Janet T., Manson, Michael W., Johnson, Samuel Y., Greene, H. G., Hartwell, Stephen R., Pacific Coastal and Marine Science Center, and Golden, Nadine E. This polygon shapefile represents geologic features within the offshore area of Bolinas, California. The continental shelf within California's Stat... Geological Survey (U.S.).
2013. Johnson, Samuel Y., Ritchie, Andrew C., Phillips, Eleyne L., Pacific Coastal and Marine Science Center, and Golden, Nadine E. This polygon shapefile contains geologic features of the offshore area of Carpinteria, California. The offshore part of the map area largely consis... Geological Survey (U.S.).
2014. Johnson, Samuel Y., Ritchie, Andrew C., Conrad, Jamie E., Dartnell, Peter, Greene, H. G., Pacific Coastal and Marine Science Center, and Golden, Nadine E. This polygon shapefile contains geologic features within the offshore area of Coal Oil Point, California. The offshore part of the Offshore of Coal... Geological Survey (U.S.).
2006. 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.).
2006. Pacific Coastal and Marine Science Center, Moss Landing Marine Laboratories, and Golden, Nadine E. This polygon shapefile contains geologic features within the offshore area of Half Moon Bay, California. The continental shelf within California's ... Geological Survey (U.S.).
2006. Dieter, Bryan E., Greene, H. G., Watt, Janet T., Phillips, Eleyne L., Johnson, Samuel Y., Hartwell, Stephen R., Manson, Michael W., Moss Landing Marine Laboratories, Pacific Coastal and Marine Science Center, and Golden, Nadine E. This polygon shapefile depictss geologic features in the offshore area of Pacifica, California. The continental shelf within California's State wat... Geological Survey (U.S.).
2006. Manson, Michael W., Watt, Janet T., Greene, H. G., Moss Landing Marine Laboratories, Pacific Coastal and Marine Science Center, and Golden, Nadine E. This polygon shapefile represents geologic features within the offshore region of Point Reyes, California. Marine geology and geomorphology was map... Geological Survey (U.S.).
2012. Johnson, Samuel Y., Ritchie, Andrew C., Conrad, J. E. (Julian Eduard), Pacific Coastal and Marine Science Center, and Golden, Nadine E. This polygon shapefile contains geological features for the offshore area of Refugio Beach, California. The offshore Refugio Beach map area largely... Geological Survey (U.S.).
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