40 MISC. PUBLICATION 11, U. S. DEPT. OF AGRICULTURE 



INTRODUCTION 



The Meadow Valley woikiuj,' circle embraces an almost ideal area for the 

 liustltution of forest management. (See map.) It is a distinct, clear-cut unit. 

 It includes sufflcient area and timber to support a moderate-sized operation. 

 One owner, the United States, has title to over 80 per cent of the stuinpage and 

 can thus control the time, place, method, and amount of cutting. 



Kio. 2. — Meadow Valley Working plnn, I'lumas Natlonnl I'nrosl. Calif. 



The purposes of this plan are: 



1. To bring together all tlie available data coiicerning this uidt which are 

 necessmy for the institution of forest management. 



2. To deternuue the time, place, and amount of cutting which will best serve 

 the interests of the United States and ultimately place the area on a sustained 

 yield basis. 



Calculations of yield and regulation of cut are of necessity crude, be<-ause 

 of the lack of growth data on mixed stands, and particularly the lack of 

 knowledge in regard to the effect of cutting on the remaining stand. Data 

 used and results obtained are (bought to be con.servative and should serve 

 their purpose until events and more data make a revision of the plan necessary. 



