RedactedNarrative: A raft was floating down the Henrys Fork of the Snake River.  The occupants of the raft were fishing when the raft hit a rock, causing all the occupants to be thrown from the raft.  None of the occupants were wearing a life jacket.  Three of the four occupants made it back in the raft.  Once the three occupants realized that the fourth person, a 71 year-old female, was missing, they jumped back in the water to rescue her.  Life saving measure were attempted but the female passenger died.