In Red Canyon owing to the east-and-west trend the sun fell to the bottom for many more hours than in Lodore which has a north-and-south trend.

Hence here even at high noon, one side or the other might be in deep shadow.

In this particular case it was the left wall which came down very straight to the river, the outside of a bend.

Opposite was a rocky, wooded point.

Between these the rapid swept down.