The use of helicopters to transport lift towers to mountain locations was a great increase in efficiency, and allowed for much less disruption of the hillside since haul roads no longer needed to be built to each tower location. New chairlifts were constructed using helicopters for tower installation at Stratton Mountain, VT in 1961 and in 1962 a helicopter was used at Magic Mountain, VT to haul cement for tower footings and the towers themselves. At Cannon Mountain, in 1962, each tower was erected in four to six minutes.

Photo credit: New England Ski Museum Collection
http://www.newenglandskimuseum.com/