Dardenne Prairie, Missouri

Fort Zumwalt West High School, the third high school established in the Fort Zumwalt School District, is located in O'Fallon, Missouri. First opened for the 1998–1999 school year, the school now has an approximate enrollment of 2,000 students with an average daily attendance rate of nearly 94%.

O'Fallon ( oh-FAL-ən) is a city in St. Charles County, Missouri, United States. It is part of the St. Louis metropolitan statistical area, located along Interstates 64 and 70 between Lake St. Louis and St. Peters. As of the 2020 census, O'Fallon had a population of 91,316, making it the most populous suburb of St. Louis, as well as the most populous municipality in St. Charles County and the 7th most populous in Missouri. O'Fallon's namesake in St. Clair County, Illinois, is also part of the St. Louis region. The two cities are one of the few pairs of same-named municipalities to be part of the same metro area.

August A. Busch Memorial Conservation Area is a 6,987-acre (28.28 km2) conservation area that is owned and managed by the Missouri Department of Conservation. Located in St. Charles County, Missouri, the land was purchased by the Department of Conservation with help from Alice Busch, the wife of August Anheuser Busch, Sr., in 1947 from the U.S. Government.

Fort Zumwalt Park is a park in O'Fallon, Missouri, that features the rebuilt homestead fort of Jacob Zumwalt. The park's total area is 48 acres (19 ha) with 4-acre (1.6 ha) Lake Whetsel, a picnic pavilion, a shelter house, and a children's playground with equipment. The lake is open for fishing from February though October (7 am–7 pm). Fort Zumwalt Park hosts O'Fallon's annual Celebration of Lights, a drive-through display of light decorations, every Christmas season, and is home to the St. Charles Model Railroad Club. The site also includes the Darius Heald Home. Formerly a state park since 1939, the State of Missouri sold the property to the City of O'Fallon in 1978 for one dollar. The Heald Home was restored in 2001, and reconstruction of Zumwalt's fort was completed in 2015.

Dardenne Township is an inactive township in St. Charles County, in the U.S. state of Missouri.Dardenne Township most likely was erected in 1818, taking its name from Dardenne Creek.

St. Dominic High School is a private Roman Catholic high school in O'Fallon, Missouri. It is located in the Roman Catholic Archdiocese of Saint Louis.

Francis Howell High School is a four-year public high school located in St. Charles, Missouri. Approximately 1800 students from Defiance, Foristell, New Melle, O'Fallon, Saint Peters, Saint Charles, Weldon Spring, and Wentzville attend school at Howell. It is in the Francis Howell School District. The school's mascot is Victor the Viking.

Liberty High School is the third high school built in the Wentzville School District in Missouri, United States. The building opened for its first year in 2013. The enrollment for the first year was under 300 students, and consisted of a freshman class due to graduate in May 2017. Liberty has now grown to all grade levels.

Weldon Springs is a spring in the city of Weldon Spring, in the U.S. state of Missouri.Weldon Springs has the name of John and Joseph Weldon, pioneer citizens.

Weldon Spring Ordnance Works (WSOW) was a 17,323-acre (70.10 km2) U.S. Government-owned, contractor-operated (GOCO) facility in St. Charles County, Missouri, 55 km west of St. Louis. The site was originally operated by the Atlas Powder Company during World War II from 1941 to 1945 to produce explosives. The Atomic Energy Commission acquired part of the property in 1955, and Mallinckrodt, Inc. processed uranium ore from 1957 to 1966 under contract. The site has been divided into several parcels, and ownership has transferred over the years. Two portions of the original WSOW property are now Superfund sites that require substantial cleanup efforts. The environmental remediation of the WSOW site is currently designated as a major project of the Defense Environmental Restoration Program of the United States Department of Defense. Part of the original property is still used by the Army Reserve as the Weldon Spring Training Area.

The City of Lake St. Louis is a planned community situated around two lakes between Interstate 70 and Interstate 64 in western St. Charles County, Missouri, United States. The population was 16,707 as of the 2020 US Census.

Toonerville is an unincorporated community in St. Charles County, in the U.S. state of Missouri.