RedactedNarrative: Operator was in rear passenger of the two person vessel, her husband was in the front passenger seat. They were not able to navigate passed a willow tree that had fallen into the river from the right hand bank. As they hit the tree the vessel overturned ejecting both out of the vessel. Operator was able to hang onto the tree until a passing drift boat assisted her out of the water. Victim was pinned between a branch and their vessel by the strong hydraulic current. He was unable to free himself and succumbed while being trapped against the branch and vessel. It took rescuers approximately two hrs to free him from the branch due to the hydraulic presure of the water. Both were wearing Type 3 PFD's