Weyburn, the opportunity city, has also been dubbed the "Soo Line City" due its connection with Chicago on the Soo Line of the Canadian Pacific Railway CPR. The city of 9,433 people is situated on Sk Hwy 35, Sk Hwy 39, and Sk Hwy 13. The small towns of Exon and Converge have been absorbed into the city of Weyburn today. The Pasqua branch or the Souris, Arcola, Weyburn, Regina CPR branch, Portal Section CPR on the Soo Line, Moose Jaw, Weyburn, Shaunavon, Lethbridge section CPR, The Brandon, Marfield, Carlyle, Lampman, Radville, Willow Bunch sectionCNR, and the Regina, Weyburn, Radville, Estevan, Northgate section CNR have all run through Weyburn. Weyburn is located astride the Williston geological Basin which contains oil deposits, and several wells operate in the vicinity. Weyburn features roadside attractions of a large Lighthouse Water Tower, Wheat sheaves and Prairie Lily. Weyburn is situated near the upper delta of the long Souris River. The Souris River continues southeast through North Dakota eventually meeting the Assiniboine River in Manitoba. In the 19th century this area was known as an extension of the "Greater Yellow Grass Marsh". "Extensive flood control programs have created reservoirs, parks and waterfowl centres along the Souris River." Between 1988 and 1995, the Rafferty-Alameda Project was constructed to alleviate spring flooding problems created by the Souris River.