I'm sure the people over at the New England Lost Ski Areas Project (NELSAP) would help/can give you more info, their forums are at
www.snowjournal.com, and here's the NELSAP NY page:
Lost New York Ski Areas
If it's not there, it may be on the old LostNY site, located here (although visually painful to use, try the Master List on the main page):
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