-
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
NOAA's Shoreline Survey Maps - Raster NOAA-NOS Shoreline Survey Manuscripts that define the shoreline and alongshore natural and man-made features
National Oceanic and Atmospheric Administration, Department of Commerce —
NOS coastal survey maps (often called t-sheet or tp-sheet maps) are special use planimetric or topographic maps that precisely define the shoreline and alongshore... -
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...