Photo: Helicopter trims trees along Pecatonica Prairie Path

A helicopter trims trees along ComEd power lines near the Pecatonica Prairie Path Dec. 5. The helicopter, operated by Asplundh Tree Services, runs 10 24-inch rotating saw blades suspended beneath the aircraft along the trees. The trimming will continue all the way to Freeport. The helicopter is manned by one pilot. (Photo by Jon McGinty)

From the Dec. 7-13, 2011, issue

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