A recreation of the fort, dating to 1960, now functions as an open-air museum, and was added to the New Hampshire State Register of Historic Places in July 2020.

[1] Plantation Number 4 was one of several towns[a] established in 1735–36 in the Massachusetts Bay Colony,[3]: 4–7  more than 30 miles (50 km) from the nearest other British settlement at Fort Dummer.

The southern end of the fort consisted of a two-story structure with a Great Hall on the second floor and an attached guard tower.

The siege lasted three days, until the French and Natives decided to head back to Canada rather than risk a direct attack on the fort, thus preventing further raids on settlements to the south and east.

One Native raid made into the town in August 1754, immediately prior to the French and Indian War, led to the capture of Susanna Willard Johnson and her family, most of whom were eventually sold into slavery.

Returning from a raid on St. Francis, Quebec, Robert Rogers in 1759 sought help here for his hungry Rangers at Fort Wentworth far up the Connecticut River.

While traveling to the Battle of Bennington in 1777, John Stark (then a brigadier general) gathered the New Hampshire Militia regiments, numbering about 1,500 militiamen, at the site.

[5][7] It now serves as an open-air museum in Charlestown, New Hampshire (incorporated as a town in 1783), depicting its appearance during King George's War.