sentences:  In 2014 the area came under management of Dean Ryder, manager of the Putnam County National Bank after the previous managers could no longer afford to take care of the property as a result of the Great Recession.Under previous ownership the mountain was known as Birch Hill (1957–1968), Big Birch (1968–1995), Thunder Ridge Ski Area (1995–present).Thunder Ridge Ski area has 21 trails.