sininihdia di le bie di ee 
J.W. Powell's Survey of the Rocky Mountain Region, $48 
a narrow valley through which passes the only practicable 
route of travel between Central Utah and Western Colorado. 
sands and deep tortuous cafions giving to the landscape an 
appearance strange and weird. 
he Book Cliffs rise to an average altitude above their base 
of 3,000 feet, and about 8,500 feet above the sea-level, and the 
country from the southern crest inclines gently northward to 
the valleys of the White and Uinta Rivers. This gigantic ter- 
race, called the Ta-va-puts Plateau, is cut in twain from north 
to south by profound gorges through which the Green River 
runs, known as the cafion of Desolation and Gray Cafion. The 
drainage of the plateau is northward from the brink of the 
cliffs through deep narrow cafions for many miles, but at last all 
these enter the Cafion of Desolation a few miles from its head. 
North of the Ta-v4-puts Plateau are the valleys of the White 
and Uinta Rivers. Nearly all the latter and a large portion 
of the lower course of the former are within the boundaries of 
Mr. Graves’ work. 
considerable bodies of irrigable lands are found along the Grand, 
Green, San Rafael and Price Rivers; and in the valleys of the 
Uinta and White Rivers, are other large tracts, on which the 
waters of the streams named can be conveyed at slight cost. 
Mr. Graves determined the extent, character and location of 
these lands, and the amount of water carried by the streams 
throughout the area embraced in his work. 
On the Ta-va-puts Plateau are small forests of pine and fir, 
but generally Mr. Graves’ district possesses no more timber than 
sufficient to meet the future local requirements of actual settlers. 
Topographic Work by Mr. Renshawe—The district assigned 
