Alaska State Trooper Josh Bentz of Juneau and residents Andrea Nelson and Dave Folletti spent more than 13 hours on a log in the upper Chilkat River after their boat flipped while moose hunting the night of Sept. 17.

Their ordeal began when engine difficulties prevented them from avoiding a log extending into the river, sometimes called a sweeper. The trio eventually was able to swim to shore and build a fire, where they were…