National Wetlands Inventory
Ecological Services

Status of the NSDI Wetlands Layer

Action: The U.S. Fish and Wildlife Service (Service) provides stewardship for the wetlands data that comprise the Wetlands Layer of the National Spatial Data Infrastructure (NSDI). In partnership with the U.S. Geological Survey, the Service has made these data available via the Internet ( All digital wetlands data are provided in a seamless format for the conterminous United States and its territories. This provides resource managers and the general public with digital wetland information that can be used in geographic information systems.

Result: As of May of 2014, the USFWS Wetlands Geodatabase contains map data for the entire conterminous 48 States, the windward islands of Hawaii, Puerto Rico, the Virgin Islands, Guam, the major Northern Mariana Islands and 35% of Alaska.

  Digital   No Data
Last updated: July 26, 2016