and
occupation of the cavate dwellings of the Tewan Indians.

North of the Rio San Juan another vast plateau region is found,
stretching to the Grand River. The mountains of this region are the La
Plata Mountains, Bear River Mountains, and San Miguel Mountains on the
east, and the Sierra El Late, the Sierra Abajo, and the Sierra La Sal on
the west, the latter standing near the brink of Cataract Canyon, through
which the Colorado flows immediately below the junction of the Grand and
Green. Throughout the region mountains, volcanic cones, volcanic necks,
and coulees are found, while the mountains themselves rise to great
altitudes and are forest-clad. Some of the plateaus attain huge
proportions, and between the plateaus labyrinthian mesas are found.
Buttes, as stupendous cameos, are scattered everywhere, and the whole
region is carved with canyons.

Grand River heads on the back of Long's Peak, in the Front Range of the
Rocky Mountains of central Colorado. At the foot of the mountain lies
Grand Lake, a sheet of emerald water that duplicates the forest standing
on its brink. Out of the lake flows Grand River, gathering on its way
the many mountain streams whose waters fill the solitude with perennial
music--a symphony of cascades. In Middle Park boiling springs issue from
depths below and gather in pools covered with con-fervae. Leaving
Middle Park the river goes through a great range known as the Gore's
Pass Mountains; and still it flows on toward the Colorado, now through
canyon and now through valley, until the last forty miles of its course
it finds its way through a beautiful gorge known as Grand River Canyon.
In its principal course this canyon is a bright red homogeneous
sandstone, and the walls are often vertical and of great symmetry.
Farther down, its walls are rugged and angular, being composed of
limestones.

The principal tributaries from the south are the Blue, which heads in
Mt. Lincoln, and the Gunnison, which heads in the Wasatch Mountains.
These streams are also characterized by deep canyons and plateaus, and
mesas abound on every hand. Between the Grand River and the White River,
farther to the east, the Tavaputs Plateau is found. It begins at the
foot of Gore's Pass Range and extends down between the rivers last
mentioned to the very brink of Green River, which is in fact the upper
Colorado. Between the Grand River and the foot of this plateau there is
a low, narrow valley with mesas and buttes. T