114 



FORESTRY AND IRRIGATION 



March 



the outlet is now on the same level as 

 the meadows which now constitute the 

 bottom of the old lake bed. So level 

 is this tract that during the spring rise 

 of the Grand River and its tributaries, 

 the waters are backed up from the 

 gorge, forming a great lake miles in 

 length and in places from one to two 

 miles in width. 



Great interests depend upon the 

 feasibility of the plans for the con- 

 struction of this reservoir. There are 

 hundreds of thousands of acres of the 

 richest land along the Colorado River 

 in California and Arizona, for which 



June 17, 1902, until such time as full 

 investigations shall have been made 

 and the questions arising in connec- 

 tion therewith be definitely settled. 



The importance of this reservoir site 

 may be partially understood from the 

 following figures : 



It has been estimated that a dam 

 200 feet in height, with a top length 

 of 371 feet, would cover a surface 

 area of approximately 15,000 acres, 

 and that its storage capacity would be 

 nearly 1,500,000 acre-feet, the cost per 

 acre-foot being about 75 cents ; and 

 that the discharge of Grand River is 



No. 3. View looking down from point "B" toward Gore Canyon, three miles away. 



a good and sufficient water supply 

 should be provided. Thorough inves- 

 tigations have been made with refer- 

 ence to storage of water along the 

 Colorado, but no feasible plan has been 

 found there. The only possibility re- 

 maining consists in the storage of wa- 

 ter upon the upper tributaries of the 

 Colorado, and, of all reservoir sites 

 thus far discovered, the Kremmlin"' 



O 



site seems to be much the best. The 

 lands covering the reservoir and dam 

 site have been withdrawn from all 

 entry, under the terms of the Act of 



sufficient to fill this reservoir each 

 year. 



Assuming, however, that only one- 

 half of this amount could be stored 

 and used for irrigation purposes, the 

 discharge from the reservoir would be 

 approximately 5,000 cubic feet per sec- 

 ond for a period of more than 70 days, 

 making all necessary allowances for 

 . evaporation and seepage. If the en- 

 tire capacity of the reservoir were to 

 be utilized in storing water for irri- 

 gation, there would be available 10,000 

 second-feet for more than 70 davs. 



