Montana State Agencies/Councils

• Montana Base Map Service Center
• Montana Cadastral Mapping Project
  
• Montana State Library (NRIS) GIS Clearinghouse
• Montana GIS Portal
• Montana Census and Economic Information Center
• Montana Fish, Wildlife, and Parks GIS Data Library
• Montana Board of Oil and Gas Conservation
• Montana Bureau of Mines and Geology
  
• Montana Land Information Advisory Council

Montana Universities

• National Center for Landscape Fire Analysis
• Montana State University Spatial Sciences Center
• University of Montana Numerical Terradynamic Simulation Group
• GIS Data of the Greater Yellowstone Ecosystem

Montana Local Governments

• Anaconda-Deer Lodge GIS Maps and Data
• City of Bozeman GIS
• Butte-Silver Bow GIS
• Cascade County GIS
• Flathead County GIS
• Gallatin County GIS
• Jefferson County Maps
• Lake County Plat Room/GIS Dept
• Lewis & Clark County/City of Helena GIS
• Madison County GIS
• Missoula City GIS/Mapping Section
• Missoula County GIS/Mapping Division
• Ravalli County GIS
• Yellowstone County GIS