Our Partners



  • 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) http://www.amfed.org/nfms and the American Federation of Mineralogical Societies (AFMS) http://www.amfed.org.


​​We hold General Meetings once a month on the second Tuesday of each month starting at 6:30 p.m. at the Corvallis Community Church in the back room. Anyone is welcome to attend.

2018 Bitterroot Gem & Mineral Show

May 19th & 20th

"Rough & Polished"

Our annual show contains Dave Trexler of Two Medicine Dinosaur Center. He will also give a talk about the new certification program. 

​Lee Silliman will speak on the fossilized trees in Yellowstone with photos. 

This year we will have a Junior's division in our Display Cases. Come check these out.

You may enter a Display Case using the attached form BELOW.


The club meets on the second Tuesday of every month at 6:30 p.m. in the Social Hall of the Corvallis Community Church, 310 2nd Street, Corvallis, MT.  Everyone is welcome! We try to have two field trips each month during the summer.
You will find more information about our club under the "ABOUT" tab at the top of this page.


Non-competitive form (pdf)