High Quality Content by WIKIPEDIA articles! The Qu'Appelle River is a Canadian river that flows 430 km east from Lake Diefenbaker in southwestern Saskatchewan to join the Assiniboine River in Manitoba, just south of Lake of the Prairies. With the construction of the Qu'Appelle River Dam and Gardiner Dam upstream water flow was significantly increased and regulated. The river also passes 4 Provincial RV parks. These include Buffalo Pound Provincial Park, Echo Valley Provincial Park, Katepwa Point Provincial Park and Crooked Lake Provincial Park. Fish species include: walleye, sauger, yellow perch, northern pike, lake whitefish, cisco, mooneye, white sucker, shorthead redhorse, bigmouth buffalo, common carp, channel catfish, black bullhead, brown bullhead, burbot and rock bass. Rock bass are Saskatchewan's only native bass. The river also passes 4 Provincial RV parks. These include Buffalo Pound Provincial Park, Echo Valley Provincial Park, Katepwa Point Provincial Park and CrookedLake Provincial Park.