Decorah Ice Cave State Preserve
Decorah Ice Cave
|Location||Ice Cave Rd.
|Area||2.9 acres (1.2 ha)|
|NRHP Reference #||78001269|
|Added to NRHP||December 20, 1978|
Decorah Ice Cave State Preserve has one of the largest glacières (ice caves) in the Midwestern United States. It consists of a 3-acre (1.2 ha) parcel of land at the edge of Barbara Barnhart VanPeenen Memorial Park in the northern portion of the city of Decorah, in Winnesheik County, Iowa.
Ice caves are one characteristic of karst topography, along with sinkholes and cave systems, all of which are present in the area, a portion of the Driftless Area of Iowa. From autumn and into early winter the cave is dry. Ice begins to form in January or February near the entrance and continues down to the lower levels. Several inches of ice on the north wall materializes by late May, and generally remains until late August.
The cave was given to Decorah in 1954, and remains the property of the city. It was declared a state geological state preserve in 1973. It was placed on the National Register of Historical Places in 1978.
- National Park Service (2010-07-09). "National Register Information System". National Register of Historic Places. National Park Service.
- "Decorah Ice Cave State Preserve (Click on the link "State Preserves Guide (Listing of all 95 preserves)" in the text.)". Iowa Department of Natural Resources. Retrieved 2016-07-05.
- George E. Knudson. "Decorah Ice Cave" (PDF). National Park Service. Retrieved 2016-07-05.
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