THE IRRIGATION AGE. 



Tongue and Powder rivers and numerous lesser 

 streams; the territory being included at present 

 about half in Wyoming and half in Montana. 



COLORADO. Area, 60,000 square miles ; population 

 in 1890, 259,000; estimated population in 1894,350,000; 

 comprising what is now northeastern Colorado in- 

 cluding Denver, southeastern Wyoming and a part 

 of western Nebraska; being that portion of these three 

 States drained by the north and south branches of the 

 Platte river system, which unite a little west of the 

 eastern boundary at the edge of the arid region. 



SOUTH COLORADO Area, 74,000 square miles; po- 

 pulation in 1890, 175,000; estimated population in 

 1894, 250,000; comprising the southeastern quarter 

 of the present Colorado, the southwestern corner of 

 the present Kansas, the northwestern corner of the 

 present Oklahoma including the " Panhandle," a 

 strip of northern Texas, and a liberal section from 

 New Mexico; being the territory drained by that 

 part of the Arkansas river system in the arid region, 

 including, besides the main stream of the Arkansas, 

 its tributaries, the Cimarron and the north and south 

 forks of the Canadian, all of which cross the eastern 

 boundary into humid Oklahoma before flowing 

 together. 



WYOMING Area,67,500 square miles ; population in 

 1890, 73,000 ; estimated population in 1894, 1 00,000 ; com- 

 prising nearly the whole of the southwestern quarter 

 of the present Wyoming and large portions of western 

 Colorado and eastern Utah; including all of the Colo- 

 rado river system to a point a little below the junction 

 of the Green and Grand, the territory being watered 

 by these rivers, and their tributaries, the San Rafael, 

 Price, DuChesne, Yampa, White, Gunnison, Dolores 

 and other streams. 



NEW MEXICO Area, 86.500 square miles; popula- 

 tion in 1890, 110,000; estimated population in 1894, 

 125,000; comprising the northwestern third of the 

 present New Mexico, the southwestern corner of 

 Colorado, the southeastern corner of Utah, and north- 

 eastern Arizona; embracing the Rio Grande valley, 

 from the sources of the river south to the 34th par- 

 allel of north latitude (at about which point begins 

 the catchment area for another natural irrigation 

 district farther down the stream), the valleys of the 

 San Juan river and its tributaries, and the basin of the 

 Little Colorado. 



Rio GRANDE Area, 102,000 square miles; popula- 

 tion in 1890, 73,000; estimated population in 1894, 

 90,000; comprising the southeastern half of the present 

 New Mexico and the western end of Texas; being 

 all the territory in the United States tributary to the 

 Rio Grande river between the 34th parallel of north 

 latitude and the mouth of the Pecos, including all the 

 country drained by the latter. 



TEXAS Area, 70,000 square miles; population 

 1890,1,335,000; estimated population 1894, 1,600,000; 

 comprising that humid portion of the present Texas 

 east of the western line of Dallas county projected 

 due north to the Red river, and extended on the 

 south so as to include Ellis, Hill, Bosque, Hamilton, 

 Coryell, Bell, Milam, half of Lee, Washington, 

 Austin, Fort Bend and Brazoria counties; including 

 the cities of Galveston and Dallas. 



SOUTH TEXAS. Area, 70,000 square miles; popu- 

 lation in 1890, 500,000; estimated population in 1894, 

 600,000; comprising all the southern end of the pres- 

 ent Texas, including the city of Austin, and extending 

 on the northwest as far as the 31st parallel of north 

 latitude, the northern boundary being slightly modi- 



fied to suit the drainage; about half of the State 

 being in the arid region and partially tributary to the 

 Rio Grande. 



WEST TEXAS. Aiea, 71,500 square miles; popula- 

 tion in 1890, 375,000; estimated population in 1894, 

 450,000; comprising a small corner of the present Ok- 

 lahoma and all that part of the present Texas not 

 already otherwise appropriated, including Fort 

 Worth; mostly an arid country drained by streams 

 flowing east from the edge of the "Llano Estacado." 



ARIZONA. Area, 91,500 square miles; population 

 in 1890, 58,000; estimated population in 1894, 75,000; 

 comprising the present Arizona, minus the parts 

 north of the Grand canyon and of the watershed 

 south of the Little Colorado, and plus a corner of the 

 present New Mexico and a strip from Nevada and 

 California; being all of the Colorado river system 

 south of the Grand canyon, including the Gila and 

 its branches. 



UTAH. Area, 83,000 square miles; population in 

 1890, 214,000; estimated population in 1894, 250,000; 

 embracing all the region tributary to the Great Salt 

 lake, including Utah lake, the Jordan and Weber 

 rivers and the entire Bear river system, the country 

 along the Sevier river and its tributaries, and the 

 lands along the streams that flow from the west and 

 the north into the Colorado river between the new 

 Wyoming boundary and the mouth of the Grand 

 Canyon ; thus comprising all of the present Utah 

 minus a narrow strip on the northwest and about a 

 quarter of its area on the east, and plus small parts 

 of the present Idaho and Wyoming and large sections 

 from the present Nevada and Arizona. 



NEVADA. Area, 118,000 square miles; population 

 in 1890, 73,000; estimated population in 1894, 75,000; 

 comprising the present State, minus its southeastern 

 and northeastern corners, extended on the west to 

 the mountains to include the headwaters of the 

 Truckee, Carson and Walker rivers, and on the north 

 to include the desert lake region of Oregon and the 

 headwater district of the Pit and Klamath rivers, 

 which flow through the mountains to the more humid 

 regions on the west; also embracing Owens river and 

 lake on the south, and all of the Humboldt river 

 basin in the central part. 



IDAHO. Area, 70,000 square miles ; population in 

 1890, 42,000; estimated population in 1894, 75,000; 

 comprising all the Shoshone valley, from the river's 

 source in the Rocky mountains to a point a little 

 below the mouth of the Malheur, including the 

 Owyhee and Malheur valleys, together with the 

 country around Lakes Malheur and Harney; thus 

 embracing the southern half ot the present Idaho, 

 and sections from the present Wyoming, Utah, Ne- 

 vada and Oregon, the northern boundary being 

 brought to the river from the east along the water- 

 shed between the Bois6 and Payette rivers, and from 

 the west along the height of land north of the Mal- 

 heur. 



WALLOWA. Area, 69,000 square miles; population 

 in 1890, 112,000; estimated population in 1894,135,000; 

 comprising that part of the present Idaho drained by 

 the Payette, Weiser, Salmon and Clearwater rivers, 

 that part of Washington south of the Shoshone, and 

 that part of Oregon east of the Cascade mountains, 

 drained by the Burnt, Powder, Grande Ronde, Walla 

 Walla, Umatilla, Willow, John Day and Deschutes 

 rivers. 



MISSOULA. Area, 66,000 square miles; population 

 in 1890, 144,000; estimated population in 1894, 225,- 



