page_title: Mammoth Cave National Park
section_title: Early 20th century: The Kentucky Cave Wars
hierarchical_section_title: Mammoth Cave National Park / History / Early 20th century: The Kentucky Cave Wars
caption_attribution_description: English: "Stalactites and stalagmites inside Mammoth Cave, formed by dripping water."
context_page_description: Mammoth Cave National Park is an American national park in central Kentucky, encompassing portions of Mammoth Cave, the longest cave system known in the world. Since the 1972 unification of Mammoth Cave with the even-longer system under Flint Ridge to the north, the official name of the system has been the Mammoth–Flint Ridge Cave System. 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 park's 52,830 acres are located primarily in Edmonson County, with small areas extending eastward into Hart and Barren counties. The Green River runs through the park, with a tributary called the Nolin River feeding into the Green just inside the park. Mammoth Cave is the world's longest known cave system with more than 400 miles of surveyed passageways, which is nearly twice as long as the second-longest cave system, Mexico's Sac Actun underwater cave.
context_section_description: The difficulties of farming life in the hardscrabble, poor soil of the cave-country influenced local owners of smaller nearby caves to see opportunities for commercial exploitation, particularly given the success of Mammoth Cave as a tourist attraction. The "Kentucky Cave Wars" was a period of bitter competition between local cave owners for tourist money. Broad tactics of deception were used to lure visitors away from their intended destination to other private show caves. Misleading signs were placed along the roads leading to the Mammoth Cave. A typical strategy during the early days of automobile travel involved representatives (known as "cappers") of other private show caves hopping aboard a tourist's car's running board, and leading the passengers to believe that Mammoth Cave was closed, quarantined, caved in or otherwise inaccessible.
  In 1906, Mammoth Cave became accessible by steamboat with the construction of a lock and dam at Brownsville, Kentucky.
  In 1908, Max Kämper, a young German mining engineer, arrived at the cave by way of New York. Kämper had just graduated from technical college and his family had sent him on a trip abroad as a graduation present. Originally intending to spend two weeks at Mammoth Cave, Kämper spent several months. With the assistance of Stephen Bishop, a Mammoth Cave Guide, Kämper produced a remarkably accurate instrumental survey of many kilometers of Mammoth Cave, including many new discoveries. Reportedly, Kämper also produced a corresponding survey of the land surface overlying the cave: this information was to be useful in the opening of other entrances to the cave, as soon happened with the Violet City entrance.
  The Croghan family suppressed the topographic element of Kämper's map, and it is not known to survive today, although the cave map portion of Kämper's work stands as a triumph of accurate cave cartography: not until the early 1960s and the advent of the modern exploration period would these passages be surveyed and mapped with greater accuracy. Kämper returned to Berlin, and from the point of view of the Mammoth Cave country, disappeared entirely. It was not until the turn of the 21st century that a group of German tourists, after visiting the cave, researched Kämper's family and determined his fate: the young Kämper was killed in trench warfare in World War I at the Battle of the Somme December 10, 1916.
  Famed French cave explorer Édouard-Alfred Martel visited the cave for three days in October 1912. Without access to the closely held survey data, Martel was permitted to make barometric observations in the cave for the purpose of determining the relative elevation of different locations in the cave. He identified different levels of the cave and correctly noted that the level of the Echo River within the cave was controlled by that of the Green River on the surface. Martel lamented the 1906 construction of the dam at Brownsville, pointing out that this made a full hydrologic study of the cave impossible. Among his precise descriptions of the hydrogeologic setting of Mammoth Cave, Martel offered the speculative conclusion that Mammoth Cave was connected to Salts and Colossal Caves: this would not be proven correct until 60 years after Martel's visit.
  In the early 1920s, George Morrison created, via blasting, a number of entrances to Mammoth Cave on land not owned by the Croghan Estate. Absent the data from the Croghan's secretive surveys, performed by Kämper, Bishop, and others, which had not been published in a form suitable for determining the geographic extent of the cave, it was now conclusively shown that the Croghans had been for years exhibiting portions of Mammoth Cave which were not under land they owned. Lawsuits were filed and, for a time, different entrances to the cave were operated in direct competition with each other.
  In the early 20th century, Floyd Collins spent ten years exploring the Flint Ridge Cave System (the most important legacy of these explorations was the discovery of Floyd Collins' Crystal Cave and exploration in Salts Cave) before dying at S
caption: Stalactites, and stalagmites formed from travertine inside Mammoth Cave
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