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The National Geographic Magazine 



by the Service. It is known as the Kla- 

 math project, and involves features of 

 irrigation, storage, and drainage in un- 

 usual combination. The Klamath Basin 

 includes about 400,000 acres of land, of 

 which 250,000 are irrigable from this 

 project. Some of the topographic feat- 

 ures are singularly interesting. Elevated 



the valley. Lost River, which rises in 

 Clear Lake, winds its tortuous way for 

 60 miles, finally emptying into Tule Lake, 

 of which it is the only source of supply. 

 Tule Lake is only six miles from the 

 source of Lost River. By constructing a 

 dam in the river at Olene, it is proposed 

 to cut off the river from the lake and 



Indians (Apaches), survivors of Geronimo's Band, building a Road to the Roosevelt 



Dam, Arizona. (See page 89) 



some 50 feet above the valley is the upper 

 Klamath Lake, the outlet of which is 

 Link River, which flows through Lake 

 Euwane at Klamath Falls into Klamath 

 River. Upper Klamath Lake is the prin- 

 cipal source of supply for the lower part 

 of the project. By means of a deep cut 

 the waters of this lake are drawn into a 

 large canal and carried southward into 



utilize the water at various points in its 

 valley. Tule Lake will dry up. The lake 

 bed will then be irrigated from the main 

 canals supplied from Klamath Lake. 

 Lower Klamath Lake is considerably 

 higher than Klamath River, its level be- 

 ing maintained by a natural dike or ledge 

 of basalt which crosses the river at Keno. 

 By excavating a channel seven feet deep 



