4 datasets found
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Federal
Historical Shorelines for Puerto Rico from 1901 to 1987
Department of the Interior —
The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from both older sources, such as aerial photos or topographic surveys, as... -
Federal
Historical bathymetry soundings between 1916 and 1920 around the Mississippi and Alabama barrier islands
Department of the Interior —
In order to characterize coastal change, historical maps and complementary records were compiled including: topographic sheets (T-sheets), hydrographic sheets... -
Federal
Historical Shorelines for Puerto Rico from 1901 to 1987
Department of the Interior —
The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from both older sources, such as aerial photos or topographic surveys, as... -
Federal
Historical Shorelines for Puerto Rico from 1901 to 1987
Department of the Interior —
The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from both older sources, such as aerial photos or topographic surveys, as...
4 datasets found