The Gorge has been my go-to playground for short trips for a while now. I've had good luck with a Tarptent Contrail for longer trips when there's a good chance of rain, but my best option for overnights or weekends has been a ponchotarp, maybe with a bivy added for splash protection. The bugs in the Gorge haven't been particularl bad, you might be able to get away with a headnet while you're in your bag.