From Birdwatching in New Hampshire , p. 101.

Fort Stark State Historic Site is located on a peninsula historically called Jerry’s Point on the southeast corner of New Castle Island. It overlooks the Piscataqua River, Little Harbor, and the Atlantic Ocean. Fort Stark was named in honor of John Stark, commander of New Hampshire forces at the Battle of Bennington (1777). It is one of seven forts built to protect Portsmouth Harbor. The others in New Hampshire are Fort Washington, Fort William and Mary (Constitution), and Fort Dearborn (Odiorne Point State Park), and in Maine: Fort Sullivan, Fort McClary, and Fort Foster.

An unmarked walking trail traverses the ten-acre fort site.