i68 



FORESTRY AND IRRIGATION 



-pril 



policy to permit it to be used by others 

 who rnay construct reservoir sites in this 

 mountainous drainage basin. The tun- 

 nel will be 4 miles in length between 

 portals. The interests of the city con- 

 sist, not only in obtaining an adequate 

 water supply for domestic purposes, but 

 in assisting the general development of 

 suburban property. 



As a result of the investigations by the 

 Geological Survey, a bond election has 

 been held in Santa Barbara and funds 

 have been voted, almost unanimously, 



the Mexican line will be finished x>n. 

 This map will show all reservoir sis as 

 well as all the irrigable lands, and the 

 basis for a comprehensive and -act 

 study of the irrigation situation amg 

 this stream. 



The Topographic Division o the 

 Geological Survey, in cooperatior -ith 

 the Imperial Company, is to make to- 

 pographic map of the entire irnable 

 district from Inyo south to the Meican 

 line and east to the Colorado P-er. 

 This will be a verv satisfacton 



DAM SITE ON THE LOWER COLORADO. TWO MILES BELOW NEEDLKS BRIDGE. 



for the construction of the tunnel line. 

 The building of reservoirs will probably 

 follow. Full details of the investiga- 

 tions are now being printed in a water- 

 supply paper entitled Storage of Water 

 in Santa Barbara County, California. 



Colorado River. During the winter 

 season practically all the work of the 

 Geological Survey for the California Di- 

 vision in the Southwest is being concen- 

 trated along the Colorado River. It is 

 in charge of Mr. E. T. Perkins, engi- 

 neer. A general topographic map in 10- 

 foot contours of all the lands between 

 the mouth of the Grand Canvon and 



upon which to study a general distrm- 

 tion system. 



Detailed'investigations are now goig 

 on upon which will be based plans ad 

 estimates of a project to irrigate 

 lands both in California and Arizo-i, 

 above and below Yuma, all of wk : 

 data are to be submitted to the Sece- 

 tary of the Interior for his considerate. 

 Two diamond core drilling outfits re 

 at work on the river above Yuma, p;- 

 pecting for bed rock upon which o 

 found diversion structures. Denm* 

 canal locations are being made, both o 

 the California and Arizona side, ir. c 



