Quick Links

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!

MBMG Data center
The MBMG has just released our new Data Center — an easy, central location for our growing collection of online databases. Now you can see at a glance all of the valuable data we offer, more every day!

GM 65 Montana Geologic road map