Prof.with Steward and Cap.

in the morning, August 11th, climbed out to study the contiguous region which was found to be not a mountain range but a bleak and desolate plateau through which we were cutting along Green River toward a still higher portion.

This was afterwards named the Tavaputs Plateau, East and West divisions, the river being the line of separation.
The walls now began to take on a vertical character rising above the water 1200 to 1800 feet, and at that height they were about a quarter of a mile apart.

From their edges they broke back irregularly to a separation as nearly as could be determined of from three to five miles, the extreme summit being 2500 feet above the river.
[Illustration: Steward.
Canyon of Desolation.
Photograph by E.O.Beaman, 1871.] While waiting for Prof.to come down from the cliffs, Beaman made some photographs and then two boats dropped down a quarter of a mile where he made some more and Andy got dinner.

I remained with the _Nell_ and about eleven o'clock the climbers came.