U.S. Forest Service 

 Research Paper INT-9 

 1964 



ROOTS OF A PONDEROSA PINE 



By 



James D. Curtis 

 Division of Forest Disease and Timber Management 



INTERMOUNTAIN FOREST AND RANGE EXPERIMENT STATION 



Forest Service 

 U.S. Department of Agriculture 

 Ogden, Utah 

 Joseph F. Pechanec, Director 



