After leaving Spokane, we took the advice of a couple we met in Grand Teton and drove the North Cascades Highway (SR20) to Seattle. It’s a scenic byway that cuts through the Cascade Mountain Range and has some beautiful views. We had no issues driving this route in our 37’ class A motorhome towing our Jeep. We share our route, weather, camping, how to check if the highway is open or closed, and the opening/closure dates for the last six years.