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Current Mapping Projects

Current Mapping Projects

MBMG geologists are currently working on seven mapping projects (fiscal year 2025) supported by the USGS STATEMAP program:

  1. Compilation of a geologic map for the Dillon 30' x 60' quadrangle;
  2. Detailed geologic mapping in the Polson 30' x 60' quadrangle;
  3. Detailed geologic mapping of the Fort Connah 7.5' quadrangle and the southern Mission fault;
  4. Completion and publication of non-STATEMAP-funded maps south of Butte;
  5. Landslide map of the historic Virginia City area, southwest Montana;
  6. Surficial deposit compilation for the 1:100,000-scale seamless geologic map of Montana; and
  7. Subsurface mapping of the Glendive and Glasgow 1° x 2° quadrangles, northeast Montana.

Statewide Geologic Mapping Status

Statewide Mapping Projects

The MBMG has published over 500 geologic maps. All maps and associated GIS data and databases are available for free download.

Download geologic maps

Recent 1:24,000-scale geologic maps

The following 1:24,000-scale geologic maps have recently been released by the MBMG and are available for download from our online catalog. Click on any map below to view the available products.

Big Hole Battlefield

Geologic map of Big Hole Battlefield


Laurin Canyon

Geologic map of the Laurin Canyon


Belmont Park Ranch

Geologic map of the Belmont Park Ranch


Argenta

Geologic map of Argenta



Recent 1:100,000-scale geologic maps

The following 1:100,000-scale geologic maps have recently been released by the MBMG and are available for download from our online catalog. Click on any map below to view the available products.

Salmon


Elliston

Geologic map of the Elliston