I was up there last week, staying at Red Mountain CG above Cicely, Alaska, er, Roslyn, Washington. Obviously not the best of times there, with the lake half empty and visibility restricted, but it was still one of the finest campsites I've ever found. It was half the price of a Colorado campsite but twice the size, shaded by tall trees and graced with a short path to a stony beach on the river. The foliage was colorful, the water was musical, and the evening air show was wonderful, both from the local bats and the planes departing SeaTac airport.
But beyond that evening's experience, the OP is right-- it's a lousy time for a road trip in that corner of the country. In one 800-mile day, I managed to drive through five states, without feeling like I'd seen even one of them! And all the forest roads and campgrounds in SW Idaho were closed to the public.