Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

Offshore Wind Energy Planning - Salt Marsh: Maryland

This is a MD iMAP hosted service layer. Find more information at These digital data files are records of salt marsh location and extent as defined by the U. S. Fish Wildlife Service's National Wetlands Inventory (NWI) program. In coastal Maryland these data were extracted from data mapped by Maryland Department of Natural Resources (MD DNR) using Maryland's Digital Orthophoto Quarter Quads. The wetlands were photo interpreted from the photography flown for the Digital Orthophoto Quarter Quads. These were flown over a period from 1988 to 1995. Outside of coastal Maryland these data were compiled by The Nature Conservancy from other National Wetlands Inventory data developed by USFWS. Last Updated: Unknown
State of Maryland Open Data
Maryland, United States
Utilities and Communication
Contributed by:
More details at
Attribute Value
Click on map to inspect values