[2] Mount Greylock Regional School is located on the site of a former airport in southern Williamstown.

The school serves the community of Williamstown, as well as nearby Hancock, Lanesborough, and New Ashford.

Mount Greylock School has a chapter of the National Honor Society, and a local partnership with the Sage City Symphony.

Mount Greylock Regional School ski teams have utilized Prospect Mountain in Vermont.

1 overall seed in the Massachusetts Interscholastic Athletic Association Division V State tournament and a championship over Bourne in that game.