At Twin Lakes (Mammoth), Mono County, dense growths of aquatic plants choked the waters. Here we 

 see Middle Twin Lake being sprayed with sodium arsenite solution to destroy the excessive plant growth. 



Twin Lakes near Mammoth, Mono County, were treated with a total of 

 900 gallons of sodium arsenite to control excessive growths of aquatic 

 plants. 



Wildlife Conservation Board Stream and Lake Improvement Projects 



In addition to the work described above, considerable stream and lake 

 improvement was carried out with funds allocated by the Wildlife Con- 

 servation Board, including construction of seven flow maintenance dams 

 at the outlets of lakes. These rock and masonry dams were constructed 

 by a Department of Fish and Game five-man construction crew. Informa- 

 tion on this construction work is tabulated below. For further detail, 

 refer to the section on Wildlife Conservation Board Projects. 



Date 



Name completed 



Middle Velma Lake__ 8- 8-50 



Lois Lake 9-20-50 



Schmidell Lake __. 9-20-50 



High Emigrant Lake 8-24-51 



Middle Emigrant Lake__ 8-24-51 



Susie Lake __. 9- 5-51 



Heather Lake _ 9-24-51 



Gold Lake* - 10-16-51 



* Bureau of Fish Conservation financed project. 



