Mount Grace, 1,617 feet (493 m), is a prominent monadnock located in north central Massachusetts in the town of Warwick, approximately two miles south of the New Hampshire border.

The mountain is rugged and largely wooded, but a firetower on the summit provides expansive views of the surrounding rural countryside.

Mount Grace supports a predominantly northern hardwood forest as well as stands of red spruce near its summit.

Grace (Sarah) died after she and her mother were captured by Native Americans of the Narragansett Tribe during King Philip's War in 1676.

Mary's Narrative records that Sarah died at the Native encampment along the Ware River in New Braintree known as Menimesit or Wenimessett.

There is a memorial stone for Sarah in North Cemetery in New Braintree, near the former site of the Native encampment.

In the 1930s, the Civilian Conservation Corps built a picnic area on the west side of Route 78, at the bottom of the mountain, below the Gulch.

The Corps also built a picnic area with stone fireplaces and grills, and road access to it.