Echo River is the largest body of water yet discovered in Mammoth Cave and a boat ride on this river, down on the lowest level is an unforgettable experience. Here, 360 feet under-ground is found several species of eyeless fish.
1952
Saturday, December 6, 2014
Kentucky - Mammoth Cave, Echo River 1952
Echo River is the largest body of water yet discovered in Mammoth Cave and a boat ride on this river, down on the lowest level is an unforgettable experience. Here, 360 feet under-ground is found several species of eyeless fish.
1952
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