We are cavers. We are explorers. We are the
Northern Rocky Mountain Grotto

Welcome to the Northern Rocky Mountain Grotto website! We invite you to become part of our caving community. The NRMG is a recognized Internal organization of the National Speleological Society (NSS).

We are Montana’s only grotto!

Chartered in 2000, our purpose is to promote the discovery, exploration, scientific study, and conservation of caves and karst. Our club consists of members who actively survey, inventory, map, photograph, monitor, and recreate in caves in all parts of the state of Montana, Idaho, the Northern Rockies, Canada, and beyond! Although our core group is centralized in Montana, our membership is diverse and currently spreads across Washington, Idaho. Wyoming, Utah, Texas, and California! The NRMG is a unique club – we are very spread out,  yet somehow we’ve kept our club active and together for over 19 years!


Learn all about our caving club and become a member here: About Us


Recent Grotto News and Announcements


Upcoming Events

Lillyguard Cave Trip

Lillyguard Cave Trip

Begins:
May 25, 2019
Ends:
May 25, 2019
Jewel Cave 200-Mile Party

Jewel Cave 200-Mile Party

Begins:
Jun 28, 2019
Ends:
Jun 30, 2019
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Previous Events

Missoula Pub Night

Missoula Pub Night

Started:
May 22, 2019
Ended:
May 22, 2019
Helena Pub Night

Helena Pub Night

Started:
May 22, 2019
Ended:
May 22, 2019