This seems to be a well done history of the ski areas of Western New England. Think I saw three Sno-Cats too.
https://www.pbs.org/video/stories-from-the-slopes-western-new-england-skiing-history-vz1oru/
Well worth the time to view.
https://www.pbs.org/video/stories-from-the-slopes-western-new-england-skiing-history-vz1oru/
Well worth the time to view.