Tully Mountain, 1163 ft is a prominent, steep-sided monadnock

Monadnock

A monadnock or inselberg is an isolated rock hill, knob, ridge, or small mountain that rises abruptly from a gently sloping or virtually level surrounding plain...

 located in north central Massachusetts

Massachusetts

The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

 in the town of Orange

Orange, Massachusetts

Orange is a town in Franklin County, Massachusetts, United States. The population was 7,839 at the 2010 census. It is part of the Springfield, Massachusetts Metropolitan Statistical Area.Part of the town is included in the census-designated place of Orange....

, approximately five miles south of the New Hampshire

New Hampshire

New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...

 border. An exposed south and west facing ledge on the summit provides views of the Millers River

Millers River

The Millers River is a river in northern Massachusetts, originating in Ashburnham and joining the Connecticut River just downstream from Millers Falls, Massachusetts...

 valley, Mount Monadnock

Mount Monadnock

Mount Monadnock, or Grand Monadnock, is the most prominent New England mountain peak south of the White Mountains and east of the Massachusetts Berkshires, and is the highest point in Cheshire County, New Hampshire...

, Mount Wachusett

Mount Wachusett

Mount Wachusett is located in the towns of Princeton and Westminster in Worcester County, Massachusetts. It is the highest point in Massachusetts east of the Connecticut River. The mountain is named after a Native American term meaning "near the mountain" or "mountain place". The mountain is a...

, and the Wapack Range

Wapack Range

The Wapack Range, sometimes referred to as the Pack Monadnock Range, is a 20-mile range of mountains in south-central New Hampshire and adjacent Massachusetts. The range is considered very scenic and rugged with many bare summits and ledges ranging from 1,800 feet to 2,290 feet. The 22 mile Wapack...

. The 22 miles (35.4 km) Tully Trail

Tully Trail

The Tully Trail is a scenic loop trail located in the towns of Royalston, Orange, and Warwick, Massachusetts near the New Hampshire border. The route crosses several ledges with sweeping views of the surrounding rural countryside and passes three waterfalls . Tully Mountain, Jacobs Hill, and Tully...

 traverses the mountain.

The mountain drains into the Tully River, then into the Millers River, then to the Connecticut River

Connecticut River

The Connecticut River is the largest and longest river in New England, and also an American Heritage River. It flows roughly south, starting from the Fourth Connecticut Lake in New Hampshire. After flowing through the remaining Connecticut Lakes and Lake Francis, it defines the border between the...

 and Long Island Sound

Long Island Sound

Long Island Sound is an estuary of the Atlantic Ocean, located in the United States between Connecticut to the north and Long Island, New York to the south. The mouth of the Connecticut River at Old Saybrook, Connecticut, empties into the sound. On its western end the sound is bounded by the Bronx...

.