Figure 1. — Aerial view showing roads built for logging on an area in northern Idaho. At present, 

 logging technology is heavily dependent on roads. In steep country it is not uncommon to 

 build 12 or more miles of roads per square mile of forest land harvested. The steeper, less 

 stable slopes simply cannot stand such disturbance. The utilization of most of these areas, 

 therefore, will depend on aerial logging systems requiring fewer roads. Some of the most 

 unstable slopes should not be logged at all and therefore should not be part of the timber 

 growing base. 



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