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The 'Frozen Niagara' In Mammoth Cave National Park Is A Spectacular Underground Wonder
The wonder was discovered in 1923, when the cave's early owners, who were already operating underground tours for tourists, pushed deeper into the system. Within a year, the Frozen Niagara ...
National Geographic news11y
Venture Deep Underground in This Breathtaking National Park
The least arduous cave tour (0.25 mile, 75 minutes) is the Frozen Niagara Tour. A modified version of the tour has only six steps each way (plus an optional 49) and is designed for visitors who ...
Yahoo20d
A trip to KY’s Mammoth Cave reminds me how vital our national parks are to the US | Opinion
This particular tour offered at Mammoth Cave is the Domes and Dripstones tour, which includes the route for the Frozen Niagara Tour and a small portion of the Grand Avenue Tour. In all ...