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Marengo Cave is a privately owned cave [1] located in Marengo, Indiana. One of only four show caves in Indiana, public tours of the cave have been given since 1883. Tours commenced just days after the cave's discovery by two school children. The cave was designated as a National Natural Landmark in 1984. [2]
A portion of the water that feeds the spring originates from Indian Creek, and then goes underground until it reaches the spring area. It produces at least three million US gallons (11,000,000 L; 2,500,000 imp gal) of water a day at an average of 18,000 US gallons per minute (1,100 L/s), enough to supply water to an average town of 12,000
Marengo is a town in Liberty Township, Crawford County, Indiana, United States. The population was 829 at the 2020 census. The population was 829 at the 2020 census. One of the tourist attractions and sources of revenue for the town is Marengo Cave , a U.S. National Landmark.
Bell Witch Cave; Blue Spring Cave; Big Bone Cave; Craighead Caverns - also called Lost Sea [1] Cumberland Caverns; Devilstep Hollow Cave; Dunbar Cave; Forbidden Caverns; Hubbard's Cave; Lookout Mountain Caverns; Lost Cove Cave; Nickajack Cave; Raccoon Mountain Caverns; Rumbling Falls Cave; Ruby Falls; Snail Shell Cave; Tuckaleechee Caverns
Indiana Dunes National Park (1 C, 40 P) Pages in category "National Natural Landmarks in Indiana" The following 24 pages are in this category, out of 24 total.
Wyandotte Caves were designated a National Natural Landmark in 1972, and they are now part of O'Bannon Woods State Park. [1] The cave system is the fifth largest in the state of Indiana, and it is a popular tourist attraction. [2]
Marengo warehouse, in Marengo, Indiana, formerly a limestone quarry, now one of the largest subterranean storage facilities in the nation, with nearly 4,000,000 square feet (370,000 m 2) space. It began as an open pit quarry in 1886 due in part to its proximity to a railroad. Underground room and pillar mining began in 1936. Leased storage ...
The Nature Conservancy has stated that, as part of the restoration of this National Natural Landmark, they and IDNR have planted more than 125,000 seedlings of red oak, shellbark hickory, and black walnut throughout the complex. [1] A 1.9-mile trail and parking lot serve a 245-acre unit of the Big Walnut complex. [2]