Big Bend National Park. We went there for my birthday in March of 2010. Big Bend borders the Rio Grande, which divides Mexico and the United States. This is a photo from the path to the summit of Emory Peak. We ran into a mountain lion on the way down. That lion was not scared of us at all. I had to throw a few rocks his way to get him to move off the path.
Terlingua is the thriving metropolis near Big Bend. Love it.