Take a visual, historic tour of the world's longest known cave system with caving enthusiasts Bob and Judi Thompson. Mammoth Cave National Park is made up of more than 53,000 acres. The region is characterized by what geologists call karst topography, a landscape dotted with sinkholes and caves. One of America's first tourist attractions, the cave was opened to the public in 1816, and was preceded in popularity only by Niagara Falls. The park was established as a national park on July 1, 1941, a World Heritage Site on October 27, 1981, and an international Biosphere Reserve on September 26, 1990. The 200 vintage images found in Images of America: Mammoth Cave and the Kentucky Cave Region represent a look back at over 100 years of photography and tourism at Mammoth Cave and other caves that make up the Kentucky Cave Region. Rare images of early transportation, hotels, cave guides, cave tours, as well as important cave discoveries, and cave explorers such as Floyd Collins, are shown throughout the book. Authors Bob and Judi Thompson have been collecting old photographs and books of the Mammoth Cave area for almost 20 years. They have published numerous articles on Mammoth Cave since 1991. Together they have extensively traveled across the United States visiting caves and collecting historical information. This book is their contribution to the rich history of the Mammoth Cave area. Used Book in Good Condition