requent resort for Indians. Arrowheads are
scattered about, many of them very beautiful; flint chips are strewn
over the ground in great profusion, and the trails are well worn.

Starting after dinner, we pass some beautiful buttes on the left, many
of which are very symmetrical. They are chiefly composed of gypsum, of
many hues, from light gray to slate color; then pink, purple, and brown
beds. Now we enter another canyon. Gradually the walls rise higher and
higher as we proceed, and the summit of the canyon is formed of the same
beds of orange-colored sandstone. Back from the brink the hollows of the
plateau are filled with sands disintegrated from these orange beds. They
are of a rich cream color, shading into maroon, everywhere destitute of
vegetation, and drifted into long, wave-like ridges.

The course of the river is tortuous, and it nearly doubles upon itself
many times. The water is quiet, and constant rowing is necessary to make
much headway. Sometimes there is a narrow flood plain between the river
and the wall, on one side or the other. Where these long, gentle curves
are found, the river washes the very foot of the outer wall. A long
peninsula of willow-bordered meadow projects within the curve, and the
talus at the foot of the cliff is usually covered with dwarf oaks. The
orange-colored sandstone is homogeneous in structure, and the walls are
usually vertical, though not very high. Where the river sweeps around a
curve under a cliff, a vast hollow dome may be seen, with many caves and
deep alcoves, which are greatly admired by the members of the party as
we go by.

We camp at night on the left bank.

_July 15._---Our camp is in a great bend of the canyon. The curve is to
the west and we are on the east side of the river. Just opposite, a
little stream comes down through a narrow side canyon. We cross and go
up to explore it. At its mouth another lateral canyon enters, in the
angle between the former and the main canyon above. Still another enters
in the angle between the canyon below and the side canyon first
mentioned; so that three side canyons enter at the same point. These
canyons are very tortuous, almost closed in from view, and, seen from
the opposite side of the river, they appear like three alcoves. We name
this Trin-Alcove Bend.

Going up the little stream in the central cove, we pass between high
walls of sandstone, and wind about in glens. Springs gush from the rocks
at the foot of the wal