Stalactites in a small grotto near the Frozen Niagara formation in Mammoth Cave
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1966 Unknown, Bob Zimmerman, me and Becky Wilkerson of Whitesville, Kentucky in Mammoth Cave
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One of the many steep climbs on the Grand Avenue tour in Mammoth Cave
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Looking straight up at the dome above the Frozen Niagara formation in Mammoth Cave
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Looking up into the Moonlight Dome near the Frozen Niagara formation in Mammoth Cave
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