The region of country lying on either side of the Colorado for six hundred miles of its course above the gulf, stretching to Coahuila Valley below on the west and to the highlands where the Gila heads on the east, is one of singular characteristics. The plains and valleys are low, arid, hot, and naked, and the volcanic mountains scattered here and there are lone and desolate. During the long months the sun pours its heat upon the rocks and sands, untempered by clouds above or forest shades beneath. The springs are so few in number that their names are household words in every Indian rancheria and every 23 powell-canyons-5.jpg CLIFF NEAR FORT WINGATE. settler's home; and there are no brooks, no creeks, and no rivers but the trunk of the Colorado and the trunk of the Gila. The few plants are strangers to the dwellers in the temperate zone. On the mountains a few junipers and piñons are found, and cactuses, agave, and yuccas, low, fleshy plants with bayonets and thorns. The landscape of vegetal life is weird--no forests, no meadows, no green hills, no foliage, but clublike stems of plants armed with stilettos. Many of the plants bear gorgeous flowers. The birds are few, but often of rich plumage. Hooded rattlesnakes, horned toads, and lizards crawl in the dust and among the rocks. One of these lizards, the "Gila monster," is 23 powell-canyons-6.jpg SCENERY ON THE HIGH PLATEAUS. 24 CANYONS OF THE COLORADO. poisonous. Rarely antelopes are seen, but wolves, rabbits, and sundry ground squirrels abound. The desert valley of the Colorado, which has been described as distinct from the plateau region above, is the home of many Indian tribes. Away up at the sources of the Gila, where the pines and cedars stand and where creeks and valleys are found, is a part of the Apache land. These tribes extend far south into the republic of Mexico. The Apaches are intruders in this country, having at some time, perhaps many centuries ago, migrated from British America. They speak an Athapascan language. The Apaches and Navajos are the American Bedouins. On their way from the far North they left several colonies in Washington, Oregon, and California. They came to the country on foot, but since the Spanish invasion they have become skilled horsemen. They are wily warriors and implacable enemies, feared by all other tribes. They are hunters, warriors, and priests, these professions not yet being differentiated. The cliffs of the region have many caves, in which these people perform their religious rites. The Sierra Madre formerly supported abundant game, and the little Sonora deer was common. Bears and mountain lions were once found in great numbers, and they put the courage and prowess of the Apaches to a severe test. Huge rattlesnakes are common, and the rattlesnake god is one of the deities of the tribes.