"Stranded in the ravine, he picked his way down the creek that led back towards his truck... Eventually, Getson's path was cut off by a steep cliff and waterfall."
He doesn't seem to be the brightest light in the harbor, does he? Go hunting alone, then stand on slick rock at the edge of a sheer drop.
Canyons and ravines usually have TWO ends, at least. Because he couldn't get out one way (toward his truck), I guess he didn't think of trying the other way.
"All I had on was just a day pack that hardly had anything in it," he said.
So whose fault was that?
Sue