Round Barn, Cooper Township

Listed on the National Register of Historic Places in 1986.

From the record

“The Round Barn, Cooper Township is a historic building located in Cooper Township southwest of Mapleton in rural Monona County, Iowa, United States. An auctioneer had this barn built to sell his purebred cattle.”
Wikipedia article Round Barn, Cooper Township, CC BY-SA 4.0.

One of 11 National Register listings published here for Monona County · listed in 1986 · category: Building.

Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service · the Wikipedia article

The listing

What is counted as historic. The nomination lists 1 building as contributing to the listing.
Address. IA 141, Mapleton, 51034
When was it listed? June 1986
Category. building
Also known as. Iowa Round Barns: The Sixty Year Experiment TR
Township. Cooper township
National Register reference number. 86001463 - the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.

Fires near this property

7 since 2014

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 7 fires within 5 miles of Round Barn, Cooper Township in 2014, burning about 13 acres in total. None started naturally. 1 was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

Reported cause	Fires
Debris and open burning	3
Equipment and vehicle use	1
Misuse of fire by a minor	1
Arson/incendiarism	1
Smoking	1

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Date	Cause	Size	Reported by	Name on the report
1 August 2014	Debris and open burning	2.0 acres	Iowa Department of Natural Resources	not named
5 May 2014	Misuse of fire by a minor	3.0 acres	Iowa Department of Natural Resources	not named
20 April 2014	Arson/incendiarism	3.0 acres	Iowa Department of Natural Resources	not named
20 April 2014	Debris and open burning	1.0 acres	Iowa Department of Natural Resources	not named
17 April 2014	Debris and open burning	1.0 acres	Iowa Department of Natural Resources	not named
17 March 2014	Smoking	2.0 acres	Iowa Department of Natural Resources	not named
13 March 2014	Equipment and vehicle use	1.0 acres	Iowa Department of Natural Resources	not named

Every fire recorded in Monona County

Storms near this property

31 since 1994

Regional context, not property-specific evidence. The National Weather Service names Mapleton, the town this property stands in, in 31 storm reports between 1994 and 2023: 13 thunderstorm wind, 13 hail, 2 tornado, 2 flash flood. The reports record 14 injuries. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

When	Event	Place named	Harm	What the report says
April 2011	Tornado (EF3)	Mapleton	14 hurt	A tornado caused extensive damage in the Mapleton area with about 100 houses destroyed and many others severely damaged in a 12 to 15 block area on the southwest side of town. This caused the displacement of around 500 to 600 people. Most garages and stand alone structures were destroyed. In addition, large trees were uprooted and windows blown out of vehicles. Twelve to 14 people sustained minor injuries, the most severe a broken leg. The worst property damage was noted to be on the lower end of the EF3 category. The tornado started about 2 miles west southwest of Mapleton, moved into town, then turned north and ended 1 mile north of town. The path length was around 3.5 miles and the maximum width was around 3/4 of a mile.
August 1994	Thunderstorm Wind	Mapleton	$500,000	no account filed
August 1994	Thunderstorm Wind	Mapleton	$500,000	no account filed
June 2014	Flash Flood	Mapleton	$50,000	Heavy rainfall caused several inches of water on roads in the city of Mapleton, as well as on the county roads outside of town. Rainfall of 1.80 inches was reported in a half hour leading to the flash flooding.
July 1994	Thunderstorm Wind	Mapleton	$50,000	no account filed
May 2023	Hail	Mapleton	-	Monona County dispatch relayed a report from an officer in Mapleton of pea to quarter size hail.
July 2016	Thunderstorm Wind	Mapleton	-	A trained spotter estimated wind gusts to 60 mph.
July 2016	Thunderstorm Wind	Mapleton	-	Numerous trees and power lines were reported downed in town.
June 2014	Flash Flood	Mapleton	-	Water was reported running over county roads in an area from Whiting to Rodney. There was also street flooding reported in the town of Mapleton.
June 2011	Thunderstorm Wind	Mapleton	-	Thunderstorm wind gusts estimated at around 70 mph blew over a semi on Highway 141 and also blew a grain bin across the highway southwest of Mapleton. The winds also downed trees and power lines in the Mapleton area and caused scattered building damage.
April 2011	Hail	Mapleton	-	Golfball-size hail was reported with the same supercell thunderstorm that produced a EF-3 tornado in Mapleton.
August 2011	Thunderstorm Wind	Mapleton	-	The public estimated that thunderstorm wind gusts reached around 60 mph.
June 2008	Tornado (EF0)	Mapleton	-	A brief tornado touched down 6 miles northeast of Castana causing mainly just tree damage.
September 2007	Thunderstorm Wind	Mapleton	-	The public estimated thunderstorm wind gusts at up to 60 mph.
September 2007	Thunderstorm Wind	Mapleton	-	Winds estimated at 70 mph were reported by the public about 4.5 miles southwest of Mapleton.
June 2002	Thunderstorm Wind	Mapleton	-	Thunderstorm wind gusts split a large tree in town. The winds were estimated at around 60 mph.
April 1999	Hail	Mapleton	-	Lasted 10 minutes.
July 1999	Thunderstorm Wind	Mapleton	-	Large limbs downed.
July 1998	Thunderstorm Wind	Mapleton	-	Tree fell on house.
August 2012	Hail	Mapleton	-	no account filed
July 2008	Hail	Mapleton	-	no account filed
July 2003	Hail	Mapleton	-	no account filed
June 2003	Hail	Mapleton	-	no account filed
May 1998	Hail	Mapleton	-	no account filed
July 1997	Hail	Mapleton	-	no account filed
June 1996	Hail	Mapleton	-	no account filed
June 1996	Hail	Mapleton	-	no account filed
June 1996	Hail	Mapleton	-	no account filed
June 1996	Funnel Cloud	Mapleton	-	no account filed
June 1996	Hail	Mapleton	-	no account filed
August 1996	Thunderstorm Wind	Mapleton	-	no account filed

Every storm recorded in Monona County

Map coverage status

No historic map-sheet match is published for this property yet. That does not mean no map exists. This record needs a coordinate-quality review before it can be joined to a sheet boundary. Browse the county's mapped places while that work is pending.

Listed places nearby

1 within 8 miles

Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.

Photograph	Property	Distance	Listed
	Trinity Memorial Episcopal Church	3.3 miles	1990

Sources for this property

National Archives record	The nomination case file for reference 86001463 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Monona County	All 11 listed properties in this county.

Provenance

Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.