GIS Inventory (Powered by RAMONA)
Integrated Ocean and Coastal Mapping (IOCM)
International Coastal Atlas Network (ICAN)
Great Lakes Information Network
Gulf of Mexico Ecosystem Viewer
Priority Habitat Information System (PHINS)
Chesapeake Bay Program GIS Data Clearinghouse
Gulf of Maine Mapping Initiative
South Atlantic Habitat and Ecosystem Internet Map Server
Alaska Geospatial Data Clearinghouse
California Ocean and Coastal Environmental Access Network (Cal OCEAN)
Connecticut Map and Geographic Information Center (MAGIC) Geo-Spatial Data Resources
Delaware Spatial Data Clearinghouse
Florida Department of Environmental Protection Technical Services GIS Data Directory
Florida Geographic Data Library
Georgia Environmental Resources Digital Data Atlas
Georgia GIS Data Clearinghouse
Illinois Natural Resources Geospatial Data Clearinghouse
Maryland Mapping Resource Guide
Maryland Department of Natural Resources Geospatial Data
Massachusetts Office of Geographic and Environmental Information (MassGIS)
Massachusetts Ocean Resources Information System (MORIS)
Michigan Geographic Data Library
Minnesota Geographic Data Clearinghouse
Minnesota Department of Natural Resources GIS Data Deli
Mississippi Automated Resource Information System (MARIS) GIS Page
Mississippi Geospatial Clearinghouse (MGC)
New Hampshire GRANIT GIS Home Page
New Jersey Department of Environmental Protection
New Jersey Geographic Information Network
New York State GIS Clearinghouse
Ohio Department of Natural Resources Geographic Information Management Systems
Ohio Geographically Referenced Information Program (OGRIP)
Pennsylvania Spatial Data Access (PASDA) System
Rhode Island Geographic Information System (RIGIS)
South Carolina Department of Natural Resources GIS Data Clearinghouse
South Carolina Department of Health and Environmental Control (DHEC) GIS
Texas Natural Resources Information System (TNRIS)
Virginia Geographic Information Network
VIMS Center for Coastal Resources Management GIS Data and Maps
Washington State Geographic Information Council (WAGIC)
Wisconsin Department of Natural Resources GIS
Wisconsin Land Information Clearinghouse