La Cienaguita
I first came upon this area three years ago and have come back every year since. It is isolated, camp sites are well spaced and the scenery is great. There is no highway noise and the night time stars are brilliant. It is free range for cattle so you may wake up several mornings to see them in 'your backyard'. There are Coues deer (a small whitetail), pronghorns (get up early to see them), a prairie dog town, coyotes can be heard many nights, and all kinds of birds.
Empire Ranch has a great but small museum, with trails around it for walking, nice restrooms, free water for filling your RV, and a rich history. If La Cieneguita campground is full (only eight sites) There are other areas with La Cienagas National Conservation Area for camping including a large former small airport on the other side of Empire Ranch.