Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Mammoth Cave National Park' has mentioned 'Exploration' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The Croghan family suppressed the topographic element of Kxc3xa4mper's map, and it is not known to survive today, although the cave map portion of Kxc3xa4mper'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. | WIKI |
| 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 Sand Cave, Kentucky, in 1925. | WIKI |
| However, this information was closely held by the explorers: it was feared that the National Park Service might forbid exploration were this known. | WIKI |
| The Cave Research Foundation was permitted to continue their exploration through a Memorandum of Understanding with the National Park Service. | WIKI |
| During the 1960s, Cave Research Foundation (CRF) exploration and mapping teams had found passageways in the Flint Ridge Cave System that penetrated under Houchins Valley and came within 800 feet (240xc2xa0m) of known passages in Mammoth Cave. | WIKI |
| This connection pushed the frontier of Mammoth exploration southeastward. | WIKI |
| Discovery of new natural entrances is a rare event: the primary mode of discovery involves the pursuit of side passages identified during routine systematic exploration of cave passages entered from known entrances. | WIKI |
| This cave became known as the Martin Ridge Cave System in 1996, as new exploration connected the 3 nearby caves of Whigpistle Cave (Schwartz's original entrance), Martin Ridge Cave, and Jackpot Cave. | WIKI |
| As of 2018, the Martin Ridge Cave System had been mapped to a length of 34 miles (55xc2xa0km), and exploration continued. | WIKI |