Just returned from Winthrop. Talked to Kevin at the Mazama Fly Shop and he recommended Campbell. Didn't fish it, but all the lakes seemed to be fishing well, mostly for stockers. We hit a no-name lake off of Twisp River Road out of Twisp that had a great Pale Evening Dun hatch at about 8:00 pm until dark. During the day, dragonfly nymphs were working. Mazama flyshop doesn't open again until Thursday. I'd recommend a stop there on your way. Give us a report if you fish Campbell.