This fire apparently wasn't just "human caused", it has been reported that some individual started it by using fireworks along the trail. On the bright side, it has also been reported that the police have a suspect, though not in custody yet. Unbe-effin-lievable.

http://www.wweek.com/news/2017/09/03/idiot-with-fireworks-starts-columbia-river-gorge-fire-that-strands-150-hikers-and-threatens-town-of-cascade-locks/