The University of Illinois Experimental Dairy Farm Historic District, also known as South Farm, is a designated historic district in the U.S. state of Illinois. It is located on the campus of the University of Illinois in Urbana, Illinois. The district consists of eight contributing structures and several non-contributing structures. The district was designated in 1994 when it was added to the National Register of Historic Places as part of the Multiple Property Submission concerning Round Barns in Illinois. Three of the district's buildings are early 20th century round barns constructed between 1908 and 1912. The district covers a total area of 6 acres (2 ha).
The three University of Illinois round barns played a special role in the promotion and popularity of the American round barn. They are located in Urbana Township, on the border of the U.S. city of Urbana, Illinois and on the campus of the University of Illinois Urbana-Champaign. The University of Illinois was home to one of the Agricultural Experiment Stations, located at U.S. universities, which were at the heart of the promotion of the round barn. At least one round barn in Illinois was built specifically after its owner viewed the barns at the university. Though originally an experiment the three barns helped to lead the way for round barn construction throughout the Midwest, particularly in Illinois. The barns were listed as contributing properties to the U of I Experimental Dairy Farm Historic District, which was listed on the U.S. National Register of Historic Places in 1994.
The Nebergall "Knoll Crest" Round Barn is located between Davenport and Blue Grass in rural Scott County, Iowa, United States. It was built in 1914, and has been listed on the National Register of Historic Places since 1986.
The Round Barn, Washington Township is a historic building located south of Janesville, Iowa in Black Hawk County, United States. It was built in 1917 as a dairy barn. The building is a true round barn that measures 60 feet (18 m) in diameter. The structure is constructed in clay tile and features an aerator and a two-pitch roof. It was built around a silo with a water tank on top of it. While that is typical of this type of structure, it is the only one known to exist in Iowa. It has been listed on the National Register of Historic Places since 1986.
The Erza McKenzie Round Barn is a historic building located near Hazleton in rural Buchanan County, Iowa, United States. It was built in 1922 by Erza McKenzie for a dairy barn. The building is a true round barn that measures 70 feet (21 m) in diameter. The barn is constructed of clay tile and features small cupolas on the west, southwest and south sides of the structure. The building features a two-pitch roof and a central silo. It has been listed on the National Register of Historic Places since 1986.
The Robert Kirkpatrick Round Barn is a historic building located near Coggon in rural Delaware County, Iowa, United States. It was built in 1919 by Robert Kirkpatrick on his own farm. The building is a true round barn that measures 60 feet (18 m) in diameter. The barn is constructed of clay tiles and features a two-pitch roof with a large hay dormer on the east side and two smaller dormers on the west and north. It is one of 16 clay tile barns that were based on a design from the Johnson Brothers Clay Works in Fort Dodge, Iowa. The use of hollow clay tile is a distinctive trait in the construction of Iowa's round barns. For many years it was used as a dairy barn before becoming a horse barn. It has been listed on the National Register of Historic Places since 2005.
The Spotts Round Barn is a historic building located near Charles City in rural Floyd County, Iowa, United States. It was built in 1914 as a dairy and horse barn. Its design was influenced by the Iowa Agricultural Experiment Station. The building is a true round barn that measures 55 feet (17 m) in diameter. It is constructed of clay tile from the Johnston Brothers Clay Works. It features a two-pitch roof, a large hay dormer on the north side and a 12-foot (3.7 m) central silo. The barn has been listed on the National Register of Historic Places since 1986.
The Nelson Round Barn is a historic building located near Allerton in rural Wayne County, Iowa, United States. It was built in 1912, and it was originally used as a dairy barn. The building is a true round barn that measures 50 feet (15 m) in diameter. It features white vertical siding, an aerator, and a conical roof. The barn has been listed on the National Register of Historic Places since 1986.
The Polygonal Barn, New Oregon Township is an historic building located near Cresco in rural Howard County, Iowa, United States. It was built in 1920 as a show barn for English Shorthorn cattle. The 16-sided building measures 70 feet (21 m) in diameter. The polygonal barn of 6 to 16 equal sides is the most common variation of the round barn that was constructed in Iowa. It features a two-pitch sectional roof, a 13 feet (4.0 m) central silo and small dormers near the top of the roof on the north and south sides. The barn was used for dairy cattle from 1958 to 1968, and it was then used for pigs and feeder cattle. It has been listed on the National Register of Historic Places since 1986.
The Thomsen Round Barn was an historical building located near Armstrong in rural Emmet County, Iowa, United States. It was built in 1912 as a dairy barn. The building is a true round barn that measures 65 feet (20 m) in diameter. The first floor is constructed of concrete and the second floor consists of white vertical siding. It features a two-pitch conical roof, and a 16-foot (4.9 m) central silo. The barn was listed on the National Register of Historic Places since 1986. As of July 21, 2014 it is no longer standing.
The George Darrow Round Barn is a historic building located near Alta Vista in rural Chickasaw County, Iowa, United States. The true round barn was constructed of clay tile in 1916. The use of clay tiles suggests that it was influenced by the work of the Iowa Agricultural Experiment Station in the early 20th-century. It has a diameter 64 feet (20 m), and a height of 50 feet (15 m). The barn features a two-pitch roof and a 14-foot (4.3 m) central clay tile silo. It was built as a dairy barn and it was used as such until 1978. Dairy cow stanchions surround the central silo on one side of the barn in a circular arrangement, and horse stalls surround the other side. The barn has been listed on the National Register of Historic Places (NRHP) since 1986. It has subsequently been torn down. It was removed from the NRHP in 2022.
The Octagon Barn, Otter Township is a historic building located near Milo in rural Warren County, Iowa, United States. It was built in 1900 as a horse and dairy barn. The octagon-shaped building measures 54 feet (16 m) in diameter. The structure features a tall center section with a winged shed around it. It is covered in red horizontal siding and is topped by a sectional conical roof. It has been listed on the National Register of Historic Places since 1986.
The Slayton Farms-Round Barn is a historic building located near Iowa Falls in rural Hardin County, Iowa, United States. Frank Slayton had it built in 1915 for use as a dairy barn. The barn is one of 16 that was built by the Johnston Brothers Clay Works from Fort Dodge, Iowa. It is constructed of hollow clay tiles and features a gambrel roof with two different pitches and hay dormer. Two aerators flank the central silo on the roof. The interior of the barn is fashioned around the silo from which silage was shoveled to feed the cattle. An overhead track system and a bucket for hauling materials remains intact. It has been listed on the National Register of Historic Places since 1999. Purchased by Engel Family in 2023.
The Octagon Round Barn, Indian Creek Township is a historic building located near Iowa Center in rural Story County, Iowa, United States. It was built in around 1880 as a dairy barn. The octagon-shaped building measures 50 feet (15 m) in diameter. The modified hip roof, heavy timber framing, rectangular interior plan, and general purpose use marks this as a design influenced by Lorenzo S. Coffin, who built the first round barn in Iowa. It has been listed on the National Register of Historic Places since 1986. The barn has deteriorated significantly and it is essentially a pile of wood now.
The Corson Emminger Round Barn near Watertown, South Dakota, United States, is a round barn that was built during 1909-1910 by Corson Emminger. It was listed on the National Register of Historic Places in 1978.
The Vander Wilt Farmstead Historic District, also known as the Heritage House Bed and Breakfast, is an agricultural historic district located north of Leighton, Iowa, United States. At the time of its nomination it included three contributing buildings, three contributing structures, one non-contributing building, and two non-contributing structures. The significance of the district is attributed to its association with progressive farming and the Country Life Movement, which sought to improve the living conditions of rural residents. The contributing buildings include the 1904 barn, the house (1920), the corn crib (1953), dairy barn (1955) and the feed lots. The two-story house was built by Douwe Sjaardema, a contractor from Pella, Iowa. The corn crib was built by the Iowa Concrete Crib & Silo Co. of Des Moines. The farm also includes a former landing strip for airplanes. It featured a 1,500-foot (460 m) grass runway where cows grazed on certain days. At one time it had a windsock and homemade landing lights. A hangar, no longer in existence, had been built in 1955. An automobile garage and two silos are the non-contributing resources. The district was listed on the National Register of Historic Places in 2004. The 1904 barn has subsequently been torn down.
The John and Marie (Palen) Schrup Farmstead Historic District is a nationally recognized historic district in Dubuque County, Iowa, United States. It was listed on the National Register of Historic Places in 2009. At the time of its nomination it consisted of four resources, which included three contributing buildings and one non-contributing building. The three buildings include a stone house, barn, and well-house. The buildings are typical of those constructed by immigrant families from Luxembourg that settled in Dubuque and nearby Jackson counties. The front part of the house is the oldest structure here and was built when Martin Burkhart owned the property. He sold the farmstead to Casper Burkhart the following year, who then sold it to John and Marie Schrup in 1856. The Schrups were responsible for adding onto the back of the house about the time they bought it and the other two buildings. The dairy farm of 193 acres (78 ha) remained in the family until 1973. Because it was always a modest enterprise, the stone buildings were not torn down and replaced with modern structures as happened on many of the Luxembourgian farms built in the mid-19th century. A wooden shed was built in the early 20th century, and is the non-contributing building. A pole barn was also added to the farmstead and it fell down c. 1995.
The Trowbridge Dairy is a property with four buildings which was listed on the National Register of Historic Places in 1979.
The Agricultural Heating Station is a historic heating plant built in 1901 on the University of Wisconsin–Madison campus. In 1985 it was listed on the National Register of Historic Places.
The W.L. and Winnie (Woodfield) Belfrage Farmstead Historic District is a nationally recognized historic district located south of Sergeant Bluff, Iowa, United States. It was listed on the National Register of Historic Places in 2017. At the time of its nomination it contained six resources, which included four contributing buildings and two non-contributing buildings. The four contributing buildings are the dairy barn (1910), farmhouse (1920), brooder house, and the chicken coop. The two no-contributing buildings are the cattle shed (1960) and the garage/utility building (2006).
