Abstract

Geographically Isolated Wetlands of the Contiguous United States
Track: Water Resources
Authors: Ellen D'Amico

The EPA mapped putative geographically isolated wetlands (pGIWs) using the National Wetland Inventory and the National Hydrography Dataset throughout the contiguous US to better understand the extent of the Nation’s wetland resources affected by multiple Supreme Court decisions potentially limiting jurisdiction. GIS made this national effort possible and allowed for geoprocessing automation and handling of large, complex datasets. Assessment of pGIW function and characteristics is underway.