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Northern Rocky Mountain Grotto

Caving in North America's Rocky Mountains and the World

Northern Rocky Mountain Grotto
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Trip Reports

West Boulder Cave: Type III Fun

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Winter Wagner’s Wonderland

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Great Falls Pub Night

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Wagner’s experience and an Ophir descent

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Ophir Cave 11.27.15

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Wagners Cave 11.21.15

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High water and a surprise passage.

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Tight Places in West Boulder

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Old Glory Mine Cave

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Red Lodge Creek Cave 11/6/2015 monitoring

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Limestone Cave

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Argenta Cave

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Wheeler Mountain day jaunt

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Cliff Hanger Cave Exploration

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Poia Lake Cave 9/18/15

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Big Pryor Mountain Karst Inventory

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Something smells Mulkey in here

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Vertical Cave Training – Mulkey Gulch, Missoula

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A Three Hour Tour of Poia Cave, Glacier National Park

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In the Trap, Digging Bones in Natural Trap Cave

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Recent Trip Reports

Caving With Carl – Lechuguilla

April 14, 2026
Ian, Ken, Ellen, Savannah and I went Caving with Carl in Lechuguilla. I have always …
The 2026 Bighorn-Horsethief Survey Season Is Here

The 2026 Bighorn-Horsethief Survey Season Is Here

April 14, 2026
After four years of project weekends, the Bighorn-Horsethief Cave (BHHT) Survey Project is entering its …

Lillyguard cave: Steep, Slick, and 30 Degrees: Battling Lilly Guard on Our …

November 17, 2025
Sunday, November 9th, 2025 By Rye Miller (18) and Cooper Striet (17) Cooper and I …

garrity cave,flint creek range: Garrity: Lidar, Camera, Action!

August 5, 2024
<span;>We all (Shawn Few, Mara Reed, Will Boekel, Demetrius, and Benjamin Bly) met at McDonald’s …

Future Events

  • Bighorn/Horsethief Survey – April Weekend
    • 04/25/2026 - 04/26/2026
  • Bighorn/Horsethief Survey - Memorial Day Weekend
    • 05/23/2026 - 05/25/2026
  • Bighorn/Horsethief Survey - June Weekend
    • 06/19/2026 - 06/21/2026
  • Bighorn/Horsethief Survey - Week-Long Summer Project
    • 08/09/2026 - 08/16/2026
  • Bighorn/Horsethief Survey - Fall Weekend (Tentative)
    • 10/10/2026 - 10/12/2026
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