rs, who
landed quickly in a convenient cove, and two fat sheep were added to the
rapidly diminishing larder. On the next day they were startled by
the sudden closing in of the walls, till the canyon, now nearly three
thousand feet deep, became very narrow, with the river filling the chasm
from one blank cliff to the other. The water was also swift and the
canyon winding, so that it was not possible to see ahead. Powell was
much disturbed lest they should run upon some impassable fall, but
luckily in about a mile and a half they emerged again into a more broken
gorge without having had the least difficulty. He justly remarks that
after it was done it seemed a simple thing to run through such a place,
but the first doing of it was fraught with keen anxiety. In the late
afternoon of this same day, they came to the end of the forty-one miles
of Cataract Canyon, marked by a deep canyon-valley entering from the
left at a sharp bend where millions of crags, pinnacles, and towers
studded the summit of the right-hand wall, now again thirteen hundred
feet high. It was called Millecrag Bend, either then, or on the second
expedition. A new canyon immediately formed; a narrow, straight canyon,
with walls terraced above and vertical below. The thirteen hundred feet
of altitude speedily diminished and in nine miles the voyagers were at
the end. Low walls again began, forming the head of the next canyon of
the series. Presently they arrived at the mouth of a river flowing in
from the right, or west. The pilot boat ran up into this stream, and
as the water of the Colorado had been particularly muddy, the men were
eager to discover clear, sparkling affluents and springs. One behind
shouted, "How is she, Jack?" and Jack sententiously replied, "Oh,
she's a dirty devil!" and by this title the river was long called, and
probably is still so known in that region, though on the maps it
was afterwards changed by Powell to Fremont River, in honour of the
Pathfinder.

They were now in the beginning of what has since been called Glen
Canyon. Powell at first gave the name of Mound to the upper half, and
Monument to the lower, but after 1871 Glen was substituted for the
whole. On July 31st they passed the mouth of the San Juan, which enters
through a canyon similar to that of the main river, about a thousand
feet deep. They tried to climb out near this point, but failed to
accomplish it. The next day they made camp in one of the peculiar
alcoves or