Mammoth Cave: Explore the World’s Longest Cave

June 29, 2017/ Jason Patlis / Government, United States Department of the Interior

Published by the Department of the Interior

Kentucky’s Mammoth Cave National Park may not be on your radar, its record-breaking caves, diverse forest and fascinating history make it a one-of-a-kind adventure.

Read the full article at: https://www.doi.gov/blog/mammoth-cave-explore-worlds-longest-cave