Minnesota GeoGateway
http://geogateway.state.mn.us/documents/
Minnesota Geographic Data Clearinghouse
http://www.lmic.state.mn.us/chouse/
North Dakota GIS Hub
http://www.state.nd.us/gis/
South Dakota Base Data
http://www.state.sd.us/gis/
GPS RESOURCES
Mn/DOT Geodetic Unit – Control Point Database
http://rocky.dot.state.mn.us/Inside_LM/Geodetic_Home/Geodetic_DataBase/DataBase/database.html
National Oceanic and Atmospheric Administration
– Datasheets and CORS Information
http://www.ngs.noaa.gov/
Post processing reference file sites:
Mn/DOT – CORS reference files
ftp://rocky.dot.state.mn.us/CORS.GPS
Clay County GIS – reference files
http://www.co.clay.mn.us/Depts/GIS/GPSRefSt.htm
LOCAL (CITY/COUNTY/TOWNSHIP)
Minnesota County GIS Contacts
http://www.lmic.state.mn.us/cty_contacts.html
MetroGIS (Twin Cities)
http://www.state.mn.us/intergov/metrogis/
Minnesota Regional Development Organizations
http://www.mrdo.org/
STATE
Minnesota
Land Management Information Center (LMIC)
http://www.lmic.state.mn.us/
Minnesota GIS/LIS Consortium
http://www.mngislis.org/
Minnesota Governor's Council on Geographic Information
http://www.gis.state.mn.us/
Mn/DOT Office of Transportation Data & Analysis
- Geographic Information & Mapping Section
http://www.dot.state.mn.us/tda/html/GIM.html
North Dakota
North Dakota GIS
http://www.state.nd.us/gis/
South Dakota
South Dakota GIS
http://www.state.sd.us/gis/
FEDERAL
Federal Geographic Data Committee
http://www.fgdc.gov/
U.S. Geological Survey
http://www.usgs.gov/
geodata.gov
http://www.geodata.gov