This is a scanned version of the 1991 paper map entitled: Wetland resources of the United States published by the United States Fish and Wildlife Service. The map was scanned at 300 dots per inch and is in the TIFF format.
Creator:
Research Data Services (RDS), Columbia University Libraries, National Wetlands Inventory (U.S.), Dahl, Thomas E., U.S. Fish and Wildlife Service., and Geological Survey (U.S.)