| Tonsfeldt Round Barn | |
| U.S. National Register of Historic Places | |
 | |
  Show map of Iowa Show map of the United States | |
| Location | Plymouth County Fairgrounds, LeMars, Iowa |
|---|---|
| Coordinates | 42°47′52″N 96°09′34″W / 42.79778°N 96.15944°W / 42.79778; -96.15944 |
| Area | less than one acre |
| Built | 1918 |
| MPS | Iowa Round Barns: The Sixty Year Experiment TR |
| NRHP reference No. | 86003194 |
| Added to NRHP | November 19, 1986 |
The Tonsfeldt Round Barn is a historic building located on the Plymouth County Fairgrounds in LeMars, Iowa, United States. It was built in 1918 to house H.P. Tonsfeldt's purebread Polled Hereford cattle, and prize bull, on his farm west of the city. The building is a true round barn that measures 82 by 68 feet (25 m × 21 m). The barn features white horizontal siding, an aerator and a Gothic curved roof. The self-supporting Gothic-arch dome of this barn is a unique feature on Iowa's round barns. In 1981 the barn was moved from the farm to the fairgrounds in order to preserve it. It is now used for exhibit space. The barn has been listed on the National Register of Historic Places since 1986.
References
- ^ "National Register Information System – (#86003194)". National Register of Historic Places. National Park Service. April 15, 2008.
- ^ "Tonsfeldt Round Barn". National Park Service. Retrieved 2017-11-24. with photo
- Dale Travis. "Iowa Round Barn List". Round Barns & Covered Bridges. Retrieved 2011-01-06.
| U.S. National Register of Historic Places | |
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- Gothic-arch barns
- Buildings and structures completed in 1918
- Buildings and structures in Plymouth County, Iowa
- National Register of Historic Places in Plymouth County, Iowa
- Barns on the National Register of Historic Places in Iowa
- Round barns in Iowa
- Le Mars, Iowa
- Relocated buildings and structures in Iowa
- Northwest Iowa Registered Historic Place stubs
- Iowa building and structure stubs