Garden Township, Boone County, Iowa

Big Creek Bridge 2 is located northeast of Madrid, Iowa, United States. It spans Big Creek for 53 feet (16 m). The Marsh arch bridge was designed by Des Moines engineer James B. Marsh in February 1917. The contract to build the structure was awarded in April of the same year to the N.E. Marsh & Son Construction Company of Des Moines for $3,170. It was completed later in 1917. The bridge was listed on the National Register of Historic Places in 1998.

Big Creek Bridge was a historic structure located northeast of Madrid, Iowa, United States. It spanned Big Creek for 43 feet (13 m). The Marsh arch bridge was designed by Des Moines engineer James B. Marsh. It was completed in 1916. The bridge was listed on the National Register of Historic Places in 1998. The historic span was replaced by a new bridge in 2004.

Union Township is a township in Polk County, Iowa, United States.Its elevation is listed as 942 feet above mean sea level.

Madrid High School is a public high school located in Madrid, Iowa, part of the Madrid Community School District. The mascot of Madrid High School (MHS) is the Tiger, and the school colors are orange and black. The school fight song is set to the tune of the Notre Dame Victory March,

Big Creek State Park is a 3550-acre state park located in Polk County, Iowa.

Clarkson was an unincorporated community in Warren County, Iowa, United States. It was located two miles east of Carlisle, near the Des Moines River. Its elevation was 935 feet.

Madrid () is a city in Douglas Township, Boone County, Iowa, United States. The population was 2,802 at the time of the 2020 census. It is part of the Boone, Iowa Micropolitan Statistical Area, which is a part of the larger Ames-Boone, Iowa Combined Statistical Area.

The Madrid Community School District, or Madrid Community Schools, is a rural, public school district headquartered in Madrid, Iowa. The district spans southern Boone County, northeast Dallas County and northwest Polk County. It serves Madrid and the surrounding rural areas.

Sheldahl First Norwegian Evangelical Lutheran Church is a historic building located in Sheldahl, Iowa, United States. The community was platted by Osmund Sheldahl and J.S. Polk. Sheldahl was a lay Lutheran minister who settled in Illinois in 1845. He and three others came to this area in 1854 in search of cheap available land. The following year, 21 families that had organized themselves as the "Palestine Congregation" relocated to Story County. Sheldahl became a large land owner and the regular pastor for Palestine Lutheran Church in 1860. He built a house in town in 1877 and he and his two sons built this church building in 1883. Osmund Sheldahl served the congregation as an unpaid pastor for 13 years. His will stipulated that the church building be made available to any Christian denomination that emphasized Bible teaching. It remained in regular use until 1936. The rectangular structure features a balloon frame covered with clapboard and built on a rubble stone foundation. The interior furnishings with decorative cabinet work details were locally made. The building is an unusual example of a private church built on private land, maintained by the founder's family and descendants, and made available for public use. The church building was added to the National Register of Historic Places in 1984. It is noteworthy for its association with the Norwegian settlement of this part of Story County and Osmund Sheldahl's volunteer ministry.

Sheldahl is a city in Polk, Boone, and Story counties in the U.S. state of Iowa. The population was 297 at the time of the 2020 census.The Boone County portion of Sheldahl is part of the Boone Micropolitan Statistical Area, while the Story County portion is part of the Ames Metropolitan Statistical Area. Together, these two areas form the Ames–Boone Combined Statistical Area. The small portion of the city that extends into Polk County is part of the Des Moines–West Des Moines Metropolitan Statistical Area.

The Carl and Ulrika Dalander Cassel House is a historic residence located in Madrid, Iowa, United States. This Greek Revival structure is believed to be the oldest frame house in town. Built in 1862, it is associated with Swedish settlement in Iowa. Carl Cassel came with his father and the first group of immigrants to the Iowa Territory in 1845. They settled in a place they called New Sweden. Anna Dalander led another group of immigrants the following year and intended to settle in the same place, but they took the wrong river and ended up in Boone County. They named their settlement Swede Point, which was later renamed Madrid. Cassel married Dalander's daughter Ulrika in 1848. He and his brothers-in-law operated a grist mill. He also farmed and was involved in local politics. This house was located on the edge of his farm and the town. Cassel probably lived here until his death in 1902. The house was listed on the National Register of Historic Places in 1994.

KWQW (98.3 FM, "The Vibe") is a contemporary hit radio station licensed to Boone, Iowa and serving the Des Moines area. The station is currently owned by Cumulus Media. KWQW's studios are in Urbandale, along with Cumulus' other stations: KGGO, KJJY, KHKI, and KBGG. Its transmitter is located near Big Creek Lake southwest of Sheldahl.