I travel the 395 route between my trips from Phx AZ to Roseburg Oregon and back pulling a 40' 5th wheel because I HATE the I-5 system. Rough road, traffic and ugly scenery......
395 has some very nice scenery along the way, and very little traffic to deal with. Many small towns to go thru, and need to slow down to a crawl thru them. But soooo worth it to me.
I have found a small lake called Diaz Lake, just south of Lone Pine that is very nice.
Has dry camping on far side of the lake, far enough away from the road, that you cant hear what traffic there is.
Last year they were converting over to an kiosk to pay for your night, and it is only $14. Very few other campers, and I had no-one around me for the weekend overnight stay this time of year.
Here is their website:
http://www.inyocountycamping.com/diaz_lake_campground.html
I'm heading out this week, and plan on using it again.
Don't need any hook ups, and it is worth it to me for no crowds.
Hope this helps.
Gery