Tully Mountain is a 1,163-foot monadnock in Orange, Massachusetts, known for its steep forested slopes, exposed granite ledges, and broad views over the Millers River valley. The practical summit is an east-facing outcrop with sightlines to Mount Monadnock, Mount Wachusett, the Wapack Range, and nearby lakes and ponds, while the true highest point lies unmarked in the woods. Crossed by the 22-mile Tully Trail, the mountain also includes the lesser-visited western Tully Ledges and a lower southern companion sometimes called Little Tully Mountain. Its accessible rocky scenery, informal local approaches, and role in recent rescue and firefighting emergencies have made it a well-known local hike.