5/20/13: Monday, The Big Empty. Enjoyed the McKittrick Canyon Nature Loop very much, thanks to the abundant and interesting interpretive signs. Spent the night in the KOA in Van Horn, TX, a pretty town of 2,500. (Re: West Texas: Jeanette Walls's great-grandfather was right.)
   In the morning, I went to shower and found the place stuffed with teenage girls, nice kids on a school trip. They'd used up all the hot water, but I got pretty clean anyway. The tent area was full of identical tents, tents that had been missing when I pulled in yesterday afternoon. Their excursion for the day was to Guadalupe Mountains National Park. Surprise!