SR 20 Both Directions
- The North Cascades Highway closed for the season at 4 p.m. Wednesday, November 28 between Milepost 134 at Diablo Overlook, east of Newhalem and Milepost 171 at Silver Star Creek west of Mazama. The highway typically reopens in early May.
Last Updated: 12/21/2018 1:52 PM
From milepost 134 to milepost 171