Tiner, R. 2010. NWIPlus Geospatial Database for Watershed-Level Functional Assessment: National Wetlands Newsletter. U.S. Fish and Wildlife Service, Northeast Region, Hadley, MA.

Assessment, wetlands,, GIS

https://www.fws.gov/northeast/wetlands/factsheets/NWIPlus_FactSheet.pdf

This document is a fact-sheet containing core information on the NWIPlus database, which includes NWI data combined with hydrogeomorphic descriptors.