The Methow Valley Highway began at Jct. State Road No. 10 Chelan-Okanogan Highway near Pateros and headed up the Methow Valley via Twisp, Winthrop, and Mazama to Harts Pass, then downhill, ending at the mining community of Barron. In 1937, the Methow Valley Highway was redesignated Primary State Highway 16. The Methow Valley Highway had no branches.
Primary State Hwys Secondary State Hwys
State Roads 1923-37