Northern Rocky Mountain GrottoMontana & Wyoming · NSS

Trip report · February 12, 2023

Big Birds and Missing Bolts.

Mill Creek 2023. Big Birds and Missing Bolts. In late November Hans contacted me and we began arranging another trip to Mill Creek Crystal Cave. 2022 had slipped by without a winter …

The rest of this trip report is for members. Membership is $12 a year and gets you every trip report, the newsletter archive and the member directory, and it supports cave conservation in Montana and Wyoming.

Join the grotto Sign in

Back to the front page