Per the interwebs:
In 2014 the trail crew started discussing options for keeping the trails open all year long. We started with many volunteer hours snow shoeing and the following year, we purchased a snow groomer and snow mobile. We had a successful inaugural grooming season but for 2016, we made a major upgrade by purchasing a Rokon 2wd mototractor.
We make every effort to get out immediately following a snow storm but we typically wait for the Mine Hill DPW to finish their work first. The trails, once groomed, are accessible for cross country skiing, snow shoeing and fat biking (less than 10psi, 3.8″ or greater please).”
I think Jason said the Rokon is no more, tho...