Data and Map Applications
Discover and access digital spatial data. Organizations may also publish their data by becoming a Data List Publisher.
The Digital Atlas is designed for finding geographic locations in Montana and exploring geographic databases, aerial photos, and topographic maps of those locations. It replaces the functionality of the State Library’s old Digital Atlas and Topofinder applications.
Download GIS datasets from the Montana State Library’s geographic database clipped to a region that you specify.
Identify the owners of Montana's land parcels and explore the state's property assessment database.
Natural Heritage Map Viewer
View Montana's Land Management, Land Cover, Wetlands data, Species Observations, and photos of survey sites in an interactive map environment.
Flathead Basin 2009 Mapping Project
Explore detailed aerial photographs and elevation data of the Flathead Basin in an interactive map environment.
Yellowstone River Map Viewer
View data collected by the Yellowstone River Conservation Districts Council that show structures built to control and use the river and the evolution of the river channel over time.
Watershed Subbasin Maps
View and download maps showing precipitation, ownership, slope, land cover, and hydrography for each of Montana's subbasins (8-digit HUCs).
MCPD – Multi-state Control Point Database
Search for and download survey and/or mapping control points in Montana and Idaho that were contributed by professional land surveyors committed to improving the positional accuracy of geospatial data.