Stay at Rock Creek Lake Campground in mid June. The drive up from Hwy 395 was easy for a mountain road. There were about 7 campgrounds along this corridor. Rock Creek Lake is at the top. The campground is at about 9,500 feet so be aware for altitude. 

Campsites are very close to the water. The walk in tent sites are next to the creek. We were in site 24. This site was located in a small clearing that gets midday sun so it can heat up. Other than site 25, the other sites had better shade coverage. The walk in sites had a dirt pad for your tent, picnic table and bear locker. Your site has assigned parking. 

It was about a 50 to 75 yard walk from the parking, water spout, and bathrooms. Camp host was pleasant and had wheelbarrows to help move your stuff. The bathrooms were flush toilets and sink. The sink faucets were variable.  

The weather was still quite chilly especially at night. The campground in general was very quiet. We didn't hear loud music or groups over 4 days. There were lots of mosquitos the whole time. Rock Creek Lake Resort just down the road has a store and restaurant serving pie. During the weekend, there are lots of day use visitors but they cleared out in the evening. 

I would definitely be back