THE MOGOLLON ESCARPMENT.


SNOW-CLAD MOUNTAINS ON THE RIVER.


THE VALLEY OF THE COLORADO.

artisans. It seems probable that the Pimas, Maricopas, and Papagos are the same people who built the pueblos and constructed the irrigation works; so their traditions state. It is also handed down that the pueblos were destroyed in wars with the Apaches. In these groves of the flood plain of the Colorado the Mojave and Yuma Indians once had their homes. They caught fish from the river and snared a few rabbits in the desert, but lived mainly on mesquite beans, the hearts of yucca plants, and the fruits of the cactus. They also gathered a harvest from the river reeds. To some slight extent they cultivated the soil by rude irrigation and raised corn and squashes. They lived almost naked, for the climate is warm and dry. Sometimes a year passes without a drop of rain. Still farther to the north the Chemehuevas lived, partly along the river and partly in the mountains to the west, where a few springs are found. They belong to the great Shoshonian family. On the Rio Virgen and in the mountains round about, a confederacy of tribes speaking the Ute language and belonging to the Shoshonian family have their homes. These people built their sheltering homes of boughs and the bast of the juniper. In such shelters, they lived in winter, but in summer they erected extensive booths of poles and willows, sometimes large enough for the accommodation of a tribe of 100 or 200 persons. A wide gap in culture separates the Pimas, Maricopas, and Papagos from the Chemehuevas. The first were among the most advanced tribes found in the United States; the last were among the very lowest; they are the original "Digger" Indians, called so by all the other tribes, but the name has gradually spread beyond its original denotation to many tribes of Utah, Nevada, and California.

The low desert, with its desolate mountains, which has thus been described is plainly separated from the upper region of plateau by the Mogollon Escarpment, which, beginning in the Sierra Madre of New Mexico, extends northwestward across the Colorado far into Utah, where it ends on the margin of the Great Basin. The rise by this escarpment varies from 3,000 to more than 4,000 feet. The step from the lowlands to the highlands which is here called the Mogollon Escarpment is not a simple line of cliffs, but is a complicated and irregular facade presented to the southwest. Its different portions have been named by the people living below as distinct mountains, as Shiwits Mountains, Mogollon