Alberta Provincial Highway No. 40, commonly referred to as Highway 40, is a south–north highway in western Alberta, Canada. It is also named Bighorn Highway and Kananaskis Trail in Kananaskis Country. Its segmented sections extend from Coleman in the Municipality of Crowsnest Pass northward to the City of Grande Prairie and is currently divided into four sections.

Kananaskis Country is a multi-use area west of Calgary, Alberta, Canada in the foothills and front ranges of the Canadian Rockies. The area is named for the Kananaskis River, which was named by John Palliser in 1858 after a Cree acquaintance. Covering an area of approximately 4,000 km2 (1,500 sq mi), Kananaskis Country was formed by the Alberta Government in 1978 to provide an assortment of land uses and designations. Land uses include resource extraction activities, recreation, power generation, and residential communities. Land designations include public land and protected areas.