This unique geological formation is located approximately 18 miles east of Butte and north of I-90. The rocks in this unique geologic area chime when tapped with a hammer.
Tuesday, Sep 28, 2021 at 2:00 p.m. Mountain Time
Tuesday, Oct 5, 2021 at 2:00 p.m. Mountain Time
Thursday, Oct 7, 2021 at 10:00 a.m. Mountain Time
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