The Registration Form and information on Hotels is listed on our Contact Page along with the Competitive and Non-Competitive Forms.

"Three Sisters" along the Bitterroot Mt. Range

​​                                     WELCOME
The Bitterroot Gem and Mineral Society is a non-profit organization. Our purpose is to promote interest and education in various Earth sciences, including geology, mineralogy, paleontology, and the lapidary and faceting arts. We also support promoting and ensuring the right of amateur hobby collecting, recreational rock hunting, and the use of public and private lands for educational and recreational purposes related to the earth sciences. We enjoy hunting for specimens with friends who share our interests and have fun doing so. We invite anyone interested to check us out.

We are affiliated with the Montana Council of Rock and Mineral Clubs, the Northwest Federation of Mineralogical Societies (NFMS) and the American Federation of Mineralogical Societies (AFMS)


 Show Times are Friday 10-6, Saturday 10-6, Sunday 10-4

Speakers at the Federation Show

Dave Trexler, Paleontologist, Two Medicine Center

George Stanley Jr., Professor of Geosciences and the Director of the Paleontology Center at U of M

Ted Antonioli, Consulting Geologist, Member of Montana Mining Association

Bruce Baty, Talk on Glacial Lake Missoula

Lee Filliman, Fossils and Petrified Trees of Yellowstone             


CHECK out our Photo Gallery page.

                                                        A Walk Through Time
                                 FROM STARDUST TO US

The Walk Through Time unfolds on giant picture boards with a scientific understanding of the five-billion year evolution of life on Earth. The Walk progresses from the formation of the solar system to the present. The Walk offers a rich context for exploring fundamental issues regarding humanity and the future of all life on Earth and is a real life the physical Walk presented over the length of 1/2 mile. It will be displayed outside on the East lawn of the fairgrounds and is a wonderful way to learn about the geology of our planet with your children. This is a free event.

                                                                                Montana Gold Prospectors Club

                        Will be giving Gold Panning demonstrations in the South parking lot.

    Bitterroot Gem & Mineral Society