The campground at the park was full but the ranger gave us a listing of nearby places including Sno-Parks. Camping is free at Sno-Parks in Oregon. There are 3 nearby Crater Lake. We stayed at Annie Creek which is south on #62 of the Nat. Park.

It is a large parking lot with a nice log warming house. We parked our RV near some big trees. Took a walk down the adjoining dirt road and looked at the nice sites by the creek, but decided the road was a bit rough for our little camper. There are no utilities but it's free! We stayed 2 nights while exploring the national park.