Highway 600 is a highway in the Canadian province of Saskatchewan. It runs from Highway 18 near Gainsborough to Township Road 174. Highway 600 is about 202 km (126 mi.) long.Highway 600 intersects Highway 18, Highway 361, Highway 13, Highway 48, Highway 1, Highway 709, Highway 308, and Highway 8.Highway 600 passes near the towns of Fertile, Antler, Maryfield, Fleming, Welwyn, Rocanville, Spy Hill, and Welby.Highway 600 is a gravel road that is operational year round.