Vessel operator was running a remote section of the Rio Grande by canoe during high water snowmelt runoff and was overturned in the last major rapid.  He was found along the river by two kayakers running the same stretch who rafted their kayaks and placed him inside one to slow down his reaction to hypothermia.  About 4 hours later they arrived at Cochiti Lake and were towed in by a ranger to the takeout where the victim was treated for hypothermia and released.
Cochiti                       