Bui. 633, U. S. Dept. of Agriculture. 



Plate III. 



F-243I9A 



Fig. 1.— An Area Clear Cut for Charcoal for the Leadville, Colo., Mines, 

 Note high stumps, lack of reproduction, and erosion in right foreground. 



F-23I49A 



Fig. 2.— A Hillside Clear Cut for Acid Wood in Northern Pennsylvania. 



The ruts down which the logs are dragged afford excellent opportunity for the starting of erosion. 



