Two men were drifting down the Snake River fishing.  The passenger was standing up in the boat attempting to remove a tangled fishing line.  The boat entered a fast moving area with several snags and stringers.  The operator was unable to move the boat with the motor with the passenger standing up and the boat struck a stringer causing it to roll underwater and flip the boat.  The passenger was momentarily trapped under the boat but was able to free himself.  Both men then climbed upon to the overturned boat and drifted downstream as they called on the operator's phone for help.
Firth                         