Niagara Cave should not be confused with Cave of the Winds (New York).
| Niagara Cave | |
| Map: | USA |
| Relief: | 1 |
| Location: | Fillmore County, Minnesota, United States |
| Depth: | 200 ft |
| Coords: | 43.514°N -92.0551°W |
| Coords Ref: | [1] |
| Discovery: | 1924[2] |
| Features: | Underground river, Subterranean waterfall, Wedding chapel, Fossils |
| Geology: | Galena formation, Ordovician Limestone |
| Lighting: | Solar Energy[3] |
| Access: | Tours are available in season |
| Visitors: | 25,000 - 30,000 per year[4] |
| Website: | niagaracave.com |
Niagara Cave is a limestone cave located in Harmony, Minnesota. The cave is approximately 200 feet (61 m) deep; features include an underground stream, 60-foot waterfall, fossils, stalactites and stalagmites.[5] The cave is privately owned, with tours available seasonally.[6]
The cave was first discovered in 1924,[2] and in 1932, three spelunkers Al Cremer, Leo Tekippe, and Joe Flynn explored the cave and named the site Niagara Cave.[7] Niagara Cave opened as a show cave in June 1934,[4] and was described by geologist J Harlen Bretz in 1938.[8]
The Minnesota Geological Survey noted in their 1995 survey, "Niagara Cave contains an excellent example of an underground river, complete with waterfall."[9]