I used to live out there. GPNF is the great place to look. They’ll see you first tho. Deep in the forest, no wind, no animals, not even insects....
The men should have brought a GPS and better gear. Probably fell asleep in the cold and never woke up.
Park personnel lock the access rd. gates at sundown. I used to use the park entrance at the end of Washougal River rd. No Way would I stay there at night.
And a compass - no batteries needed.