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2015. Global Resource Information Database and United Nations. Office for Disaster Risk Reduction. This point shapefile includes estimation on the economic value of the exposed assets in United States. Virgin Islands as well as their physical cha... United Nations. Office for Disaster Risk Reduction.
2001. United States. Minerals Management Service. This polygon shapefile shows the official protraction diagram (OPD) and leasing map boundaries for the United States, covering areas of the Outer C... Geological Survey (U.S.).