Mammoth Cave National Park
Size: 4201px × 2763px
Photo credit: © Zachary Frank / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: america, barren, biosphere, caprock, cave, cavern, central, county, edmonson, epikarstic, flint, formation, frozen, hart, heritage, international, interspersed, kentucky, layers, limestone, mammoth, mississippian, national, niagara, park, region, reserve, ridge, ridgetops, sandstone, site, sparse, states, stratigraph, system., unesco, united, usa, world, zone