s 



Regeneration of 

 Ponderosa Pine in 

 the Northern 

 Rocky Mountain - 

 Intermountain 

 Region 



Marvin W. Foiles 

 and James D. Curtis 



USDA Forest Service 

 Research Paper INT-145, 1973 



INTERMOUNTAIN FOREST & 

 RANGE EXPERIMENT STATION 

 Ogden, Utah 84401 



