62 Proceedings os the 



In Montana are similar conditions. The Yellow- 

 stone River, rising in Wyoming, derives a large water 

 supply from wooded areas which must be protected in 

 order that the flow of that stream may be properly 

 safeguarded. In Nebraska, the conditions are similar 

 to those in Western Kansas. The North and South 

 Platte Rivers coming into that State, are dependent 

 for their waters, in part at least, upon the flow from 

 the high mountains of Central Colorado and Southern 

 Wyoming. In Nevada is under construction one of 

 the largest irrigation works in the world, taking water 

 from Truckee River over into the Carson. The in- 

 tegrity of that great system, which will cost at least 

 $3,000,000 and possibly $5,000,000 when it is com- 

 pleted, will depend largely on the conservation of the 

 forest growth in the State of California; there again 

 is the same question of protection of forests in one 

 State to secure the prosperity of the homes in another. 

 In New Mexico is being built on Hondo River, a tribu- 

 tary of Pecos River, a reservoir which receives its 

 waters from forest reserves in central New Mexico. 

 There is in contemplation a great work on the Rio 

 Grande, interstate and international in character; that 

 river in turn must be reservoired and every drop of 

 water held. Here again comes the question, how are 

 the head waters of that river in Colorado to be best 

 protected for the waters which are to be used in Colo- 

 rado, New Mexico, Texas, and Old Mexico? 



North Dakota is far out on the plains and there are 

 few forests in the State. The great river of the State 

 is the Missouri, rising in Montana. This stream de- 

 pends largely for its flow on the waters from forests at 

 its head. South Dakota has a mountain region of its 

 own and a forest reserve in the Black Hills. 

 'Coming from the Black Hills are streams, not very 



