A second on Collier - perhaps rather than Mazama, as it's only about 45 minutes from Crater Lake (maybe an hour to the rim, tops), and there are hookups. As suggested, the logging museum is fun (and educational). However, there are no cabins. Nice CG.
The Crescent City KOA is good. A few sites (ask for one in or near the woods) are pretty cool, some even IN the redwoods. Decent CG, better than any others we saw in the area IMO. Good base camp for the Redwoods & as a lead-in or follow-up to Oregon Caves.
