1780 1800 



20 



40 



60 



1900 20 



40 



60 



80 



Year 



Figure 7. — Stump diameters (outside bark) of six dominant and oodominant pinyons on 

 the Green Creek plot from 1780 to 1977. 



1780 



Figure 8.— Stump diameters (outside bark) of five dominant and oodominant pinyons 

 on the Cattle Trough plot from 1780 to 1977. 



12 



