Wasatch Mountains, 93, 94 Drainage of the, 96 Orographic structure of the, 96 Wastage of water, 84 Water, Evaporation of, 13 Irrigating capacity of, 8, 84, 115, 141 Loss of, by evaporation, 87 Method of determining the supply of, 85, 115, 139 storing, 12 rights, 40 should inhere in the lands to be irrigated, 40, 41 supply, 57 affected by the cutting of timber, 75 farming, 73 grazing, 74 Economic bearings of the, 76 Increase in the, 57, 89, 91 Storage of, 116, 125, 144 used in irrigation, Quantitative value of, 81 Unit of, 81 Wastage of, 84, 142 ways rudely constructed, 8 Weber River, 119 drainage basin, Agricultural resources of the, 121 Area of the, 121 Mean flow of the, 72 White River, Irrigable lands of the, 162 Volume of flow of the, 162 Winds of Utah, 68 Wisconsin, Land grants to, 169, 179 Wyoming, Mean annual precipitation in, 79 Yampa Plateau, 105 Young, Hon. Brigham, 105 [Illustration: DEPARTMENT OF THE INTERIOR U. S. GEOGRAPHICAL AND GEOLOGICAL SURVEY OF THE ROCKY MOUNTAIN REGION, J. W. POWELL IN CHARGE. MAP OF UTAH TERRITORY REPRESENTING THE EXTENT OF THE IRRIGABLE, TIMBER AND PASTURE LANDS. COMPILED AND DRAWN BY CHARLES MAHON, J. H. RENSHAWE, W. H. GRAVES AND H. LINDENKOHL FOR THE COMMISSIONER OF PUBLIC LANDS 1878. Miles Note _This map has been constructed from atlas sheets of the U. S. Geographical and Geological Survey of the Rocky Mountain Region with additional material taken from the maps of the U. S. Geographical Explorations and Surveys west of the 100ᵈᵗʰ Meridian, Lieut. Geo. M. Wheeler, Corps of Engineers, in charge, the U. S. Geological Exploration of the 40ᵗʰ Parallel, Clarence King, U. S. Geologist in charge, and the U. S. Geological and Geographical Survey of the Territories, F. V. Hayden, in charge_ EXPLANATION _Irrigable Lands_ _Standing Timber_ _Area destitute of Timber on account of Fires_ _Rail Roads_ _Wagon Roads_ _Trails_ _Telegraph Lines_ _County Seats in Capital Letters._] [Illustration: DEPARTMENT OF THE INTERIOR U.S. GEOGRAPHICAL AND GEOLOGICAL SURVEY OF THE ROCKY MOUNTAIN REGION J. W. POWELL, IN CHARGE. MAP OF THE UNITED STATES EXHIBITING THE GRANTS OF LANDS MADE BY THE GENERAL GOVERNMENT TO AID IN THE CONSTRUCTION OF RAILROADS AND WAGON ROADS. 1878 For explanation see chapter on “Land Grants in aid of International Improvements”