RUINS AT THE HEAD OF MCELMO CANYON. of irrigation was developed; but the appropriations necessary for the maintenance of so large a body of people in the course of their passage from savagery to civilization seemed too great to those responsible for making grants from the national treasury, and just before 1870 the Navajos were permitted to break up their homes at the Bosque Redondo and return to the canyons and cliffs of their ancient land. Millions were spent in conquering them where thousands were used to civilize them, so that they were conquered but not civilized. Still, they are making good progress, and have once more acquired large flocks and herds. It is estimated that they now have more than a million sheep. Their experience in irrigation at the Bosque Redondo has MESAS AND BUTTES. 53 not been wholly wasted, for they now cultivate the soil by methods of irrigation greatly improved over those used in the earlier time. Originally they dwelt in hogans, or houses made of poles arranged with much skill in conical form, the poles being covered with reeds and the reeds with earth; now they are copying the dwelling places of civilized men. They have also acquired great skill in the manufacture of silver ornaments, with which they decorate themselves and the trappings of their steeds. Perhaps the most interesting ruins of America are found in this region. The ancient pueblos found here are of superior structure, but powell-canyons-28.jpg A NAVAJO HOGAN. they were all built by a people whom the Navajos displaced when they migrated from the far North. Wherever there is water, near by an ancient ruin may be found; and these ruins are gathered about centers, the centers being larger pueblos and the scattered ruins representing single houses. The ancient people lived in villages, or pueblos, but during the growing season they scattered about by the springs and streams to cultivate the soil by irrigation, and wherever there was a little farm or garden patch, there was built a summer house of stone. When times of war came, especially when they were invaded by the Navajos, these ancient people left their homes in the pueblos and by the streams and constructed temporary homes in the cliffs and canyon 54 CANYONS OF THE COLORADO. walls. Such cliff ruins are abundant throughout the region, intimately the ancient pueblo peoples succumbed to the prowess of the Navajos and were driven out. A part joined related tribes in the valley of the Bio Grande; others joined the Zuñi and the people of Tusayan; and stall others pushed on beyond the Little Colorado to the San Francisco Plateau and far down into the valley of the Gila. powell-canyons-29.jpg AN ANCIENT COILED VASE FROM TUSAYAN.