The cave system contains a large underground creek that courses around much of the cave's nearly 16 miles (26 km) of passages. The cave system has some unusual features such as its expansion rate, which is higher than most caves. It also has relatively low amounts of oxygen and high amounts of carbon dioxide. The cave is a National Natural Landmark, designated in 1987.In 1987, the Cold Water Cave was designated as a National Natural Landmark by the National Park Service.[1]
There are two entries; both are on private property.
Coldwater Creek Wildlife Management Area is a state hunting ground near Bluffton, and is near to the cave system.
cold, water, spring, state, preserve, 44111, 96028, 44111, 96028, acre, parcel, state, preserve, protecting, spring, that, issues, from, cold, water, cave, extensive, cave, system, winneshiek, county, iowa, fillmore, county, minnesota, spring, tributary, upper. 43 26 28 N 91 57 37 W 43 44111 N 91 96028 W 43 44111 91 96028 Cold Water Spring State Preserve is a 60 acre 240 000 m2 parcel state preserve protecting a spring that issues from Cold Water Cave an extensive cave system in Winneshiek County Iowa and Fillmore County Minnesota The spring is a tributary of the Upper Iowa River The cave system contains a large underground creek that courses around much of the cave s nearly 16 miles 26 km of passages The cave system has some unusual features such as its expansion rate which is higher than most caves It also has relatively low amounts of oxygen and high amounts of carbon dioxide The cave is a National Natural Landmark designated in 1987 In 1987 the Cold Water Cave was designated as a National Natural Landmark by the National Park Service 1 There are two entries both are on private property Coldwater Creek Wildlife Management Area is a state hunting ground near Bluffton and is near to the cave system The cave is located in the Driftless Area of Iowa and Minnesota a region characterized by karst topography which involves disappearing streams blind valleys sinkholes caves cold springs and cold streams all of which are present here Sources editCold Water Spring State Preserve dead link Retrieved July 22 2007 Karstpreserve com retrieved July 22 2007 Interview with John Ackerman July 2003 retrieved July 22 2007References edit National Natural Landmarks National Natural Landmarks U S National Park Service www nps gov Retrieved 2019 03 21 Year designated 1987External links editExploring Iowa s Coldwater Cave Documentary produced by Iowa Public Television Retrieved from https en wikipedia org w index php title Cold Water Spring State Preserve amp oldid 1167038283, wikipedia, wiki, book, books, library,
