Big Bend NP; September, 1999.
Many visitors to Big Bend hike the short Santa Elena Canyon trail along the Rio Grande to the point where there's only river and canyon walls that go straight up; end of trail.
Here I've hiked from the river to the canyon's rim; behind me is a view of Santa Elena & the Rio Grande that few people see. I was on a river trip; in a few hours we would be floating the Rio Grande through the canyon. Well, floating & being dragged in some places by our boatman, as the river was very low in places.