Found by accident
I found this cave by accident while elk hunting last fall. It is not marked in any way …
Trip reports
Every trip the grotto has written up, back to 2011. Cave locations are withheld; the stories are not.
336 reports
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Sign in JoinHigh Elevation Potential Entrance
I believe that the portal was perhaps 3-feet tall & 5 feet wide, although this estimation is certainly …
Moldy, Stinky Wood Rat Midden
The journey was unfavorable to say the least, but another cave may have been found in the area. …
First Ever Ragged Ridge Survey
Hey! My name is Lukas S., and I am a brand-new member of the NRMG, but I have …
Mountains and Muskegs: Prince of Wales Island Caving 2022
Mountains and Muskegs The trip started with orcas and ended with humpback whales–unusual wildlife sightings on the way …
Dry and Wonderful (Until It Wasn't)
The September project weekend never quite happened. Three weeks after the weeklong, most of us were still unpacking, …
Montan-oh-maybe, and the Cave Everybody Walked Past
Every caver with a copy of Caves of Montana has done this at least once. You read a …
Thirteen Feet from Glory (Give or Take a Hundred)
Every project weekend has a story the map tells afterward. June's was a cliffhanger. It started with a …
Three Thousand Feet and an Empty Trauma Room
If April was the weekend that got snowed on, Memorial Day was the weekend where everything went right, …
Two Phones, Three Distos, Three Brothers
The 2026 season at Bighorn–Horsethief opened the way every sensible caving season should, with a snowstorm. Three inches …
Caving With Carl – Lechuguilla
Watch: Caving With Carl. The whole trip in ten minutes, with diagrams. Carl’s pants get their own timeline. …
Steep, Slick, and 30 Degrees: Battling Lilly Guard on Our Knees
Sunday, November 9th, 2025 By Rye M. (18) and Cooper Striet (17) Cooper and I set out to …
Garrity: Lidar, Camera, Action!
We all (Shawn F., Mara R., Will Boekel, Demetrius, and Benjamin B.) met at McDonald's for a quick …
Caving Safely & Softly at Lillyguard
Bozeman Boy Scout Troop 676 visited the Lillyguard cave to introduce some scouts to caving. This was done …
Devils chimney on the winter solstice
Devils chimney is a small and highly historically significant cave located in the sweet grass hills, a small …
Silvertip Expedition Report 2023
There were two expeditions organized to Silvertip Peak in the summer of 2023. One by Jason B. focusing …
Big Days in Big Caves
I opened my eyes to the complete darkness that surrounded me and enjoyed it for a few minutes …
Great Expectations Aid Climbs
Dylan C., Adrian B. and myself went on a quick day trip to Great Expectations to do some …
Breaking the Ice Cave Curse: the Whittles Finish a Journey of 60 Years
Part I In the early 60s, we lived at 20 Berg Avenue in the new Streeter Brothers subdivision …
Ridgewalking in the North Tetons/Owl Creek area
(note: this trip report is also posted at https://blog.alexfischer.science/p/ridgewalking-in-north-tetonsowl-creekhtml) In the northern reaches of Grand Teton National Park, …
Under the [Ancient] Sea
Under the [Ancient] Sea: Resurvey of Titan Cave Since I started visiting Bighorn and Horsethief, rumors of Titan …
A 9 to 5 Job
We lost a lot of blood during the hike up to Poia Lake on Friday night. The mosquitoes …
Through the crack
My friend James asked me to take him on a more difficult caveing trip. Horse theaf was that …
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