Big Bend Ranch State Park (a relatively new--1998-- state park next to the much better known Big Bend National Park) perhaps provides the most comfortable ISOLATED tent camping sites in the world. Compared to the sites of Europe (and many in the US) where tent guy lines often intertwine, each BBRSP site is 1/2 a mile or more from its nearest neighbor, but provides a covered table, tent pad and in some cases a composting toilet. And you can drive to it with a high ground clearance vehicle ("crossover" or SUV), 4 wheel drive not essential for many. It's a backpacking site with the conveniences of a campground! Yes, you do have to drive 20-30 miles of gravel road to get there, but the stars at night, and the isolation of the Chihuahuan Desert are priceless--at $18 for two people per night. We stayed at campsite Pila Montoya #3, which even had a spring fed water tank close by. There are no groceries or gas in the park so be sure to fill up with both before heading out. Ice is available for a donation. Hiking, mountain biking, horse riding (bring your own) and birding are the main activities. Spring and fall are the best---and summer is really hot, hot, hot.