f the Uinta to the head of the Canyon of
Desolation is 20 3/4 miles. The Canyon of Desolation is 97 miles long;
Gray Canyon, 36 miles. The course of the river through Gunnison Valley
is 27 1/4 miles; Labyrinth Canyon, 62 1/2 miles.

In the Canyon of Desolation the highest rocks immediately over the river
are about 2,400 feet. This is at Log Cabin Cliff. The highest part of
the terrace is near the brink of the Brown Cliffs. Climbing the
immediate walls of the canyon and passing back to the canyon terrace and
climbing that, we find the altitude above the river to be 3,300 feet.
The lower end of Gray Canyon is about 2,000 feet; the lower end of
Labyrinth Canyon, 1,300 feet.

Stillwater Canyon is 42 3/4 miles long; the highest walls, 1,300 feet.

CHAPTER X.

FROM THE JUNCTION OF THE GRAND AND GREEN TO THE MOUTH OF THE LITTLE
COLORADO.

_July 18_.--The day is spent in obtaining the time and spreading our
rations, which we find are badly injured. The flour has been wet and
dried so many times that it is all musty and full of hard lumps. We make
a sieve of mosquito netting and run our flour through, it, losing more
than 200 pounds by the process. Our losses, by the wrecking of the "No
Name," and by various mishaps since, together with the amount thrown
away to-day, leave us little more than two months' supplies, and to make
them last thus long we must be fortunate enough to lose no more.

We drag our boats on shore and turn them over to recalk and pitch them,
and Sumner is engaged in repairing barometers. While we are here for a
day or two, resting, we propose to put everything in the best shape for
a vigorous campaign.

_July 19.--_Bradley and I start this morning to climb the left wall
below the junction. The way we have selected is up a gulch. Climbing for
an hour over and among the rocks, we find ourselves in a vast
amphitheater and our way cut off. We clamber around to the left for half
an hour, until we find that we cannot go up in that direction. Then we
try the rocks around to the right and discover a narrow shelf nearly
half a mile long. In some places this is so wide that we pass along with
ease; in others it is so narrow and sloping that we are compelled to lie
down and crawl. We can look over the edge of the shelf, down 800 feet,
and see the river rolling and plunging among the rocks. Looking up 500
feet to the brink of the cliff, it seems to blend with the sky. We
continue along until we come to a