So here's part of Moulton Fulmer's 1958 81,000 cfs river trip in the Grand Canyon. See them pulling into Deer Creek Falls with their boats, and the infamous Granite Narrows (AKA Deer Creek Narrows), the narrowest part of the river at 75.5 feet (I helped measure it at its narrowest point), and how there was just no way to not get splatted on the wall! Worst spot on the river at high flows!
These shots are from Tom Martin's presentations on Youtube, linked below.
Call of the Canyon by Tom Martin - Part 6 http://www.youtube.com/watch?v=8NbOkUcRtvA
Call of the Canyon by Tom Martin - Part 6 http://www.youtube.com/watch?v=1AyP509dVEk
