Alpine Meadow or Martis Creek??
The name is tricky, but it seems to be officially Alpine Meadow... but also Martis Creek. Either way, it's slightly off the beaten path, in a good way. No highway noise, and a quick trek on foot or by car will take you to Martis Creek Lake right behind the campgrounds.
The sites themselves are large, and the ones on the far end of the park open up to the field between the grounds and the lake, yet every site is in the trees, keeping it a bit cooler in the summer (even a little chilly at night... in late May it got down in the 30s).
The one bathroom building is clean and easy to access, since the grounds are pretty small. No host to be seen while we were there... we could of had our pick of open sites, if we didn't have reservations.
The campground is right near the Truckee airport, but the trees act like a buffer for whatever noise the small aircraft make. We saw them, but didn't seem to notice any obtrusive noise from them.