2 males were rafting the Grizzly Creek area of the Colorado River (very high water conditions) when their raft flipped over ejecting both males. One was able to make it to shore immediately, the other, was seen further downriver floating with his head barely above the water, then his head eventually disappeared under the water. To this day he has still not been recovered and is missing.  It is believed that neither had on a PFD but has not been confirmed.
COLORADO RIVER
Glenwood Springs              