74 



BULLETIN" 61, U. S. DEPARTMENT OF AGRICULTUEE. 



Table VI. — Run-off of the basin region. 



TRUCKEE. 



Year. 



Tahoe (519 square 

 miles). 



State line (955 

 square miles). 



Vista (1,519 

 square miles). 



Derby (1,740 

 square miles). 



Pyramid (2,130 

 square miles). 



Run- 

 off. 



RUD-Ofl 



per mile. 



Run- 

 off. 



Run-off 

 per mile. 



Run- 

 off. 



Run-off 

 per mile. 



Run- 

 off. 



Run-off 

 per mile. 



Run- 

 off. 



Run-off 

 per mile. 



1903 



Sec.-ft. 

 205 

 589 



Sec.-ft. 

 0.40 

 1.14 



Sec.-ft. 



753 



1,420 



Sec.-ft. 

 0.79 

 1.48 



Sec.-ft. 



786 



1,610 



Sec.-ft. 

 0.52 

 1.06 



Sec.-ft. 



Sec.-ft. 



Sec.-ft. 

 8'59 



Sec.-ft. 

 0.40 



1906 









1908 



626 

 1,550 









1909 



488 



.92 



1,530 



1.60 







0.892 

















HUMBOLDT. 



Year. 



Ellco (1,150 square 

 miles). 



Golconda (10,800 

 square miles). 



Oreana (13,800 

 square miles). 



Run-off. 



Run-off 

 per mile. 



Run-off. 



Run-off 

 per mile. 



Run-off. 



Rim-ofl 

 per mile. 



1903 



Sec-feet. 



Sec-feet. 



Sec-feet. 

 171 

 373 

 998 

 239 

 235 



Sec-feet. 



0.0158 



.034 



Sec-feet. 

 121 

 303 

 720 

 164 

 287 



Sec-feet. 

 0.009 



1906 



210 

 248 

 103 



0. 183 



.022 



1907 





1908.. . 









1909. . 





.03 



.021 











WALKER. 



Year. 



. ColevUle (306 

 square miles). 



Yeringt-on (1,100 

 square miles). 



Wabuska (2,420 

 square miles). 



Run-off. 



Run-off 

 per mile. 



Run-off. 



Run-off 

 per mile. 



Run-off. 



Run-off 

 per mile. 



1903 



Sec-feet. 



Sec-feet. 



Sec-feet. 



Sec-feet. 



Sec-feet. 

 170 



Sec-feet. 

 0. 0704 



1906 



582 



1.90 



322 

 390 



0.293 





19U7 ■ 



















Year. 



Woodfords (70 

 square miles). 



Empire (988 square 

 miles). 



Hazen. 



Run-off. 



Run-off 

 per mile. 



Run-off. 



Run-off 

 per mile. 



Run-off. 



Run-off 

 per mile. 



1903 



Sec-feet. 



Sec-feet. 



Sec-feet. 

 429 

 798 

 212 

 678 



Sec-feet. 

 0.43 

 .807 



Sec-feet. 



Sec-feet. 



1906 



231 



3.30 







1908 







1909 







.686 



645 













Table VII. — Run-off in the Oregon Lake region. ^ 



Malheur Lake 



Harney Lake, Silver Creek (Riley) . 



Silver Lake Basin 



Abert Lake Basin 



Area of 

 watershed. 



Sq. miles. 

 865 



Mean flow. 



Sec-feet. 

 364 

 116 

 55.2 

 189 



Flow per 

 square mile. 



Sec-feet. 

 0.37 



.25 

 .694 



1 Water-Supply-Paper No. 212, U. S. Geol. Survey. 



