Lanigan Creek

Lanigan Creek is a river in the Canadian province of Saskatchewan. It is located in the south central part of the province in a region called the Prairie Pothole Region of North America, which extends throughout three Canadian provinces and five U.S. states. It is also within Palliser's Triangle and the Great Plains ecoregion.

The river starts north-west of the Quill Lakes, near the village of St. Gregor and the intersections of Highway 5 and Highway 667. It travels in a south-south-westwardly direction past the town of Lanigan and into the northern end of Last Mountain Lake. The river is part of the Upper Qu'Appelle River watershed, as Last Mountain Creek drains Last Mountain Lake into the Qu'Appelle River. The most northerly part of the Lanigan Creek Watershed also happens to be the most northerly point of the Red River Watershed.

At the southern end of Lanigan Creek, at the point it empties into Last Mountain Lake, there's Last Mountain Lake Bird Sanctuary, which was North America's first migratory bird sanctuary. The northern end of lake is a large, marshy flood plain. Last Mountain Lake National Wildlife Area encompasses all of the bird sanctuary, the northern portion of the lake, and the flood plain plus surrounding grasslands and hills. The area is listed as a Ramsar site.