1. Avalanche Creek CR pretty sweet - head up 133 towards Marble, left at the sign. Good boating in the Crystal above there as well right now...
2. Thompson Creek OK, but not as scenic or close to Crystal boating as Avy. That said, various camping options in and not in CG's on the dirt roads up Thompson.
3. Drive up the Dry Park Road and pitch a tent around Dinkle Lake below Sopris - head out of Carbondale south on 133 again, left at Dry Park right when you get out of Cbndle, stay on it as it turns to dirt - camps wherever you like or go to the top of the hills, turn right when given a fork, go to the lake. Numerous options on this road.
4. Get an RF Boater to let you sleep in their yard. PM me if that option appeals.