Question: Which river is the city where MFC 29 was held located on?

Context paragraphs:
Battle of Haguenau (1793): The Battle of Haguenau (18 November – 22 December 1793) saw a Republican French army commanded by Jean-Charles Pichegru mount a persistent offensive against a Coalition army under Dagobert Sigmund von Wurmser during the War of the First Coalition.  In late November, Wurmser pulled back from his defenses behind the Zorn River and assumed a new position along the Moder River at Haguenau.  After continuous fighting, Wurmser finally withdrew to the Lauter River after his western flank was turned in the Battle of Froeschwiller on 22 December.  Haguenau is a city in Bas-Rhin department of France, located 29 km north of Strasbourg.

The Island, Chennai: The Island is a river island situated on the Coovum River in the northern part of the Indian city of Chennai.  The island was created artificially in the early 19th century by merging the Coovum River with the then Elambore River.  An equestrian statue of Sir Thomas Munro, popularly known as "His Stirrupless Majesty", is located on the island.  The Madras Gymkhana Club and Pallavan Illam, the headquarters of the Metropolitan Transport Corporation (MTC), Chennai are also located here.  The Island Grounds constitute a vast empty space on the island where fairs and exhibitions are held.

Kamloops Lake: Kamloops Lake in British Columbia, Canada is situated on the Thompson River just west of Kamloops.  The lake is 1.6 km wide, 29 km long, and up to 152 m deep.  The community of Savona is located at the west end of the lake on the Thompson River.  The city of Kamloops is located a few miles east of the head of the lake, at the confluence of the North and South Thompson Rivers.

Windsor, Ontario: Windsor ( ) is a city in Ontario and the southernmost city in Canada.  It is on the southern shore of the Detroit River, directly across the river from Detroit, Michigan.  Windsor is a major contributor to Canada's automotive industry and has a storied history and a diverse culture.

29th Street (Sacramento RT): 29th Street is a side platformed Sacramento RT light rail station in the Midtown neighborhood of Sacramento, California, United States.  The station was opened on September 5, 1987, and is operated by the Sacramento Regional Transit District.  As part of the Gold Line, it has service to Downtown Sacramento, California State University, Sacramento, Rancho Cordova, Gold River and Folsom.  The station is located at the intersection of 29th Street and R Street, below the overpass of the Business Loop 80/Capital City Freeway, and is the easternmost station in the Central City Fare Zone.  Portions of the Poverty Ridge neighborhood are also accessible from the station.

MFC 29: MFC 29: Conquer was a mixed martial arts event held by the Maximum Fighting Championship (MFC) on April 8, 2011 at the Colosseum at Caesars Windsor in Windsor, Ontario.  The event was broadcast on HDNet.

Maximum Fighting Championship: Maximum Fighting Championship is a Canadian mixed martial arts (MMA) promotion based in Edmonton, Alberta.  MFC’s former home, in Canada, is the River Cree Resort and Casino in Enoch, Alberta, located just outside Edmonton, Alberta but has also held events at the Edmonton Expo Centre.  MFC events are broadcast on The Fight Network, AXS TV (formerly HDnet) in North America and most recently TSN2.  MFC is known to be the biggest MMA promotion in Canada and one of the top MMA shows in the World.  MFC has notable Canadian fighters, such as Ryan Jimmo, Graham Spencer, Tom Watson and Douglas Lima, plus MMA veterans, such as Jason MacDonald, Thales Leites, Jay Silva, Trevor Prangley, and Paul Daley.

Bridge near Kemer: The Bridge near Seydikemer was a Roman segmental arch bridge near the ancient city of Xanthos in Lycia, in modern-day southwestern Turkey.  Its remains are located on the upper reaches of the Xanthos river ("Koca Çayı"), 4 km upstream from the town of Seydikemer, at a site where the gravel river bed reaches a width of 500 m. Only a 29 m long and 4.5 m wide section on the right river bank, outside of the inundation zone, is left today, having once served as approach to the bridge proper.  Despite its near-complete destruction, the bridge represents a noteworthy example of the early use of segmental arches and hollow chambers in bridge building.

Bukit Seguntang: Bukit Seguntang ("Seguntang Hill") is a 29–30 metres high small hill located at the northern bank of Musi River and within the vicinity of Palembang, capital city of South Sumatra province, Indonesia.  It is located around 3 kilometres north from Musi river northern bank and around four kilometres southwest from Palembang city center.  The place is considered sacred by the locals and home of many archeological relics believed to be related to Srivijaya Empire, once a dominating political power around Malacca Strait (6th to 13th century AD).  Today the hill gain status as an archaeological park.

KMBC-TV: KMBC-TV, virtual channel 9 (UHF digital channel 29), is the ABC-affiliated television station licensed to Kansas City, Missouri, United States and also serving Kansas City, Kansas.  The station is owned by the Hearst Television subsidiary of the Hearst Corporation, as part of a duopoly with CW affiliate KCWE (channel 29).  The two stations share studio facilities located at the Winchester Business Center on Winchester Avenue and East 63rd Street (near Swope Park, off of I-435) in southeastern Kansas City, Missouri; KMBC-TV maintains transmitter facilities located near the Blue River in eastern Kansas City.  On cable, KMBC-TV is available on Charter Spectrum, Comcast Xfinity and Consolidated Communications channel 12, and Google Fiber and AT&T U-verse channel 9.  There is a high definition feed provided on Spectrum digital channel 1200, Xfinity channel 812, Consolidated channel 610 and U-verse channel 1009.

Supporting paragraphs: MFC 29 Windsor, Ontario
Answer: Detroit River