TexasCHLforum.com

I was at Big Bend earlier this year and I can tell you for sure there is a border patrol check along 385 between Big Bend Natl. Park and Marathon, TX. Nothing to worry about if you're a U.S. citizen. It seemed to me they were just interested in catching illegals.

Generally, the chance of using your firearm to defend yourself from a wild animal there is extremely low. Yes, mountain lions and black bears do inhabit parts of the Chisos Mountains in Big Bend, but they are very rarely encountered. Even if encountered, they exhibit very shy behavior and will usually avoid humans whenever possible. I would be more concerned about not leaving food scraps around and storing them in the provided bear resistant lockers.

Like others have said, water is extremely important there. I like to play it safe and bring everything I think I might need with me. I would recommend the hike to the "south rim" if you are physically fit. Outstanding views and hiking experience.

IIRC, gasoline is only available at two places in the park...Panther Junction visitor center and Rio Grande Village. I recommend buying the "National Geographic Trails Illustrated" map of the park.