Along the lower part of the Uinta and the Duchesne, and the lower courses of nearly all the minor streams, large tracts of arable land are found, and from these good selections can be made, sufficient to occupy in their service all the water of the Uinta and its numerous branches. The agricultural portion of the valley is sufficiently low to have a genial climate, and all the crops of the northern States can be cultivated successfully. Stretching back on every hand from the irrigable districts, the little hills, valleys, and slopes are covered with grasses, which are found more and more luxuriant in ascending the plateaus and mountains, until the peaks are reached, and these are naked. On the north of the Uinta, and still west of the Green, the basin is drained by some small streams, the chief of which is Ashley Fork. Except near the lower course of Ashley Fork, this section of country is exceedingly broken; the bad lands and hogbacks are severed by deep, precipitous cañons. From the east the White River enters the Green. Some miles up the White, a cañon is reached, and the country on either hand, stretching back for a long distance, is composed of rugged barren lands. But between the highlands and the Green, selections of good land can be made, and the waters of the White can be used to serve them. From the White, south to the East Tavaputs Plateau, the grass lands steadily increase in value to the summit of the Brown Cliffs. Many good springs are found in this region, and eventually this will be a favorite district for pasturage farms. Fine pasturage farms may be made on the southern slope of the Yampa Plateau, with summer pasturage above and winter pasturage below. Altogether, the Uinta-White Basin is one of the favored districts of the west, with great numbers of cool springs issuing from the mountains and hills; many beautiful streams of clear, cold water; a large amount of arable land from which irrigable tracts may be selected; an abundance of fuel in the piñon pines and cedars of the foot hills; and building timber farther back on the mountains and plateaus. The whole amount of irrigable land is estimated at 280,320 acres. THE CAÑON LANDS. South of the Tavaputs highlands, and east and south of the High Plateaus, the Cañon Lands of Utah are found. The lower course of the Grand, the lower course of the Green, and a large section of the Colorado cuts through them, and the streams that head in the High Plateaus run across them. All the rivers, all the creeks, all the brooks, run in deep gorges--narrow, winding cañons, with their floors far below the general surface of the country. Many long lines of cliffs are found separating higher from lower districts. The hills are bad lands and alcove lands. The Sierra la Sal and Henry Mountains are great masses of lava, wrapped in sedimentary beds, which are cut with many dikes. South of the High Plateaus great numbers of cinder cones are found.