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Established in 1919, the Montana Bureau of Mines and Geology (MBMG) continues to fulfill its mandate to collect and publish information on Montana's geology to promote orderly and responsible development of the energy, groundwater, and mineral resources of the State. A non-regulatory state agency, the MBMG provides extensive advisory, technical, and informational services on the State's geologic, mineral, energy, and water resources. The MBMG is increasingly involved in studies of the environmental impacts to land and water caused either by past practices in hard-rock mining or by current activities in agriculture and industry.


MBMG people and projects in the news!


The MBMG's 2017 Screensaver is now available for your enjoyment!

fawn in hidingCrow Creek FallsPasque flowersicesicle treesDark Eyed Junco


  • Missoulian Drying out: When streams don't flow, the problem may be deeper than it seems
  • 2017 Mining and Mineral Symposium-Oct 11-14
  • Rocks and MineralsWINNING CASES The award-winning Montana Tech Mineral Museum's display featuring Montana's sapphire deposits at the 2016 Denver Gem and Mineral Show.