“We love mineralogy, geology, rockhounding, paleontology, lapidary arts — anything related to rocks! We are dedicated to learning, exploring, sharing, and educating others so they can enjoy earth science as much as we do.”

Club Meetings

We meet the first Thursday of each month. We enjoy an educational presentation by a guest speaker and sharing finds with fellow rockhounds.

Field Trips

We go on several single day and multi-day field trips each year — surface hunting or digging.

Rock Shows

Our annual rock show is the first weekend in May. There are other rock shows in Montana and Wyoming too!

Past Events

Jul 30, 2022

Miles City Gem & Mineral Show

2nd Annual Miles City Gem & Mineral Show

Join us for a fun-filled weekend of anything and everything rocks — gems, minerals, fossils, crystals, jewelry, and more.

Custer County Events Center
Miles City Fairgrounds
42 Garryowen Rd, Miles City, Montana

Sat. July 30: 10:00 AM – 5:00 PM
Sun. July 31: 10:00 AM – 4:00 PM

Adults 12: $3 (cash only)
Children 12 and Under: Free

• Vendors of Jewelry, Gems, Fossils, Crystals, and other minerals
• Raffle Prizes
• Display Exhibits
• Kids’ Activities: Wheel of Fortune, Gem Scoop, Garnet Table, Grab Bags

We respectfully request that you:
• Not touch anything at the show unless you buy it
• Monitor your children to behave safely

Sponsored by the Miles City Gem & Mineral Club

Apr 30, 2022

2022 Billings Gem & Mineral Show

April 30 – May 1, 2022
Saturday Apr 30: 10:00 am – 5:00 pm
Sunday May 1: 10:00 am – 4:00 pm

Fun for the whole family includes:

  • Vendors of Jewelry, Gems, Fossils, Crystals, and other minerals
  • Raffle Prizes
  • Silent Auction
  • Kids’ Activities
  • Display Exhibits

Admission at Door*
$5.00/adult (12 and over) for 2-day pass
Free Tote Bag for your treasures!
(One tote bag per paid admission while supplies last.)
Note: No $100 bills please.

Children under 12: Free
Each child receives 5 FREE Activity Tickets ($5 value)
(Additional Kids’ Activity Tickets $1.00 each)

Mexican food truck
Frozen Yogurt with fresh fruit

Want to Avoid the Crowd?
We recommend Sunday 10 am – 12 noon as our slowest hours

We respectfully request your help by:

  • Not touching anything at the show unless you buy it
  • Monitoring your children to behave safely
Sep 11, 2021

2021 Rocks & Stuff Swap Meet

Buy, Sell or Swap just about anything… including rocks! Admission is free. Things you might find at the swap meet:

• Rocks (of course… the sponsors are rockhounds!)
• Jewelry
• Crafts
• Home-grown vegetables
• Mexican food
• and more!

If you want to display goods for sale or swap, rent a double-long parking space for only $20. Or rent two spaces for $35. Park your vehicle in the back space and display your goods in the front space.

You may sell or swap anything you want as long as it is legal, does not require a license, and is family-friendly. Bring your own tables and anything else you need. Nothing is provided except the space.

Contact Doug at (406) 670-0506 for more information or to reserve a parking space.

This is a fundraiser for the Billings Gem & Mineral Club, a non-profit organization.


Geology365 is a FREE to use collection and club management software.
As an individual, you can catalog your collection as well as design and print custom labels.
As a club, you can manage your club activities (meetings, field trips, and rock shows), membership, and host your website (this site is a Geology365.com site). create your free account