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The Rope Access Team recently rappelled down Mount Rushmore to calibrate sensors that monitor "rock blocks" in the granite.

United statesNorth dakotaFermin cruzGutzon borglumMount rushmore michael zimnyMount rushmoreMichael zimnyTunkasila sakpe pahaBlaine kortemeyerCharles demery gutzon borglumDarrell bohnhoffNational park serviceMount rushmore rope teamMount rushmore rope access teamSchool of minesWashington state