Willoughby State Forest covers 7,682 acres (31.09 km2) in Newark, Sutton and Westmore in Caledonia and Orleans counties in Vermont.

Activities include hiking, primitive camping, cross country skiing, snowshoeing, hunting and fishing.

[2][3] Willoughby State Forest is easily accessible from State Routes 5 and 5A and is bisected by Lake Willoughby, with Mount Hor (2648 feet) to the west and Mount Pisgah (2751 feet) to the east.

It is located on the divide between the Saint Lawrence and Connecticut River watersheds.

The highest peak in the forest is Bald Mountain at 3315 feet in elevation.