Highway 42 is a highway in the Canadian province of Saskatchewan. It runs from the intersection of Highway 2 and Highway 202 near Tuxford until Highway 15. Highway 42 is about 205 km (127 mi) long. The highway also passes the communities of Marquis, Keeler, Brownlee, Eyebrow, Central Butte, Lawson, Riverhurst, Lucky Lake and Dinsmore, Saskatchewan. Highway 42 crosses Lake Diefenbaker on the 1.5 km (0.9 mi) long Riverhurst Ferry route and ice road in the winter.