@Theodule The park website:  https://www.nps.gov/bibe/planyourvisit/backpacking_chisos.htm

Useful info here on back country use in Big Bend.  looks like lots of good stuff is available.

Big Bend was the first NP I ever visited (in fifth grade, about 1948 or so), so my personal views are a bit dated - the park has changed quite a bit since then......

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