National Park Service, Kentucky.
Rolling hills, deep river valleys, and the world's longest known cave system. Mammoth Cave National Park is home to thousands of years of human history and a rich diversity of plant and animal life, earning it the title of UNESCO World Heritage Site and International Biosphere Reserve.
DO NOT FOLLOW YOUR GPS! From the North: Take Interstate 65 to Exit 53 (Cave City Exit). Turn right onto KY-70. Follow 70/255 as it becomes the Mammoth Cave Parkway in the park. Follow the Mammoth Cave Parkway to the Visitor Center. From the South: Take Interstate 65 to Exit 48 (Park City Exit). Turn left onto KY-255 and follow 255 as it becomes the Park City Road into the park. Follow Park City Road until it joins the Mammoth Cave Parkway; turn left. Follow the Mammoth Cave Parkway to the Visitor Center.