Echo River Spring (Kentucky)

Inside Mammoth Cave National Park

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The subterranean Echo River emerges at Echo River Spring a short walk away from the Green River Ferry. The barren banks around the spring reflect the changing volume of water that can flow from the spring and/or backfill from the Green River during flood.
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More Info:
Trail inside Mammoth Cave National Park
Distance: .8 miles round trip
Location: Begins at Green River Ferry parking lot.

This is where one of the many rivers that flows through Mammoth Cave emerges. Water bubbles up out of the spring, or during spring floods water backs up from the Green River and enters the cave here. Combine a trip to this spring with the Historic Tour or Mammoth Passage Tour to give your students a better understanding of the connection between the cave and the surface. Have your students test water temperature, velocity, pH, and oxygen here and at Sloan's Crossing Pond or a creek near your school and compare.
Mammoth Cave National Park Education Surface Activities