North Cascade Highway (HWY 20) Washington State

This is considered one of the top 10 drives in the US. It closes when snow starts coming down late fall due to avalanches and reopens at various times in the spring depending on the winter snow fall. An amazing loop from Seattle north on I5 to Burlington, then east on Hwy 20 to Lake Diablo, then continue east to the Town of Winthrop Washington going over the Liberty Bell Pass. From Winthrop you drive through the little town of Twisp, Carlton down to HWY 97 South to Starr. Continue south till you hit the sign that says Lake Chelan HWY 150. This takes you to the town and the lake. Lots of Wineries.  You can then take the Alternative 97 on the south side of the lake to Winesap and then south to Entiat down to Wenatchee. From here you take HWY 2 to Sunnyslope, Cashmere and into Leavenworth and then back up over the mountain pass and back to Seattle.