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 lightly with a hammer. It is believed that the ringing is a combination of the composition of the rock and the way the joining patterns have developed as the rocks have eroded away, if a boulder is removed from the pile, it doesn't ring. Please don't disturb this natural phenomenon!Activities: Explore geologic formationFacilities: Parking area and sign information.Fees: NoneSeason: Year-round, weather permitting.Maps: Butte South BLM map or the Pipestone Travel Management Area map available from the Butte Field Office.
Take Exit 241 (Pipestone) from I-90 and travel east on a gravel road (parallels interstate) for about three-fourths of a mile, then turn north on a gravel road, cross the railroad tracks and continue north for approximately 3 miles. A high clearance vehicle is recommended.
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