Northern Rocky Mountain GrottoMontana & Wyoming · NSS

Bighorn/Horsethief Survey - June Weekend

Friday 19 June 2026

Armpit, Wyoming Armpit, Wyoming

Cave Trip

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Early-summer weekend trip into the Bighorn/Horsethief system. Survey and re-survey of open leads in Bighorn Cavern and Horsethief Cave. Armpit camp. Good window before the summer heat and bugs get serious. New cavers welcome - we'll pair beginners with experienced leaders; non-survey camp roles available too. Sign up on the project Google Group ([email protected]) to get logistics details.

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