Highway 57 is a highway in the Canadian province of Saskatchewan. It runs from Highway 5 east of Kamsack to the Manitoba border, where it transitions into PTH 57. Highway 57 is about 19.3 km (11.9 mi.) long within Saskatchewan.Highway 57 passes through the Duck Mountain Provincial Park in Saskatchewan, and Kamsack Beach and Ministik Beach, located along Madge Lake, are accessible from the highway.