[1] The original site of the fort is now lost below the waters of the Connecticut River impoundment of the Vernon Dam.

It consisted of a 180-square foot (17 m²) wooden stockade with 12 guns manned by 55 men (43 Massachusetts militiamen and 12 Mohawk warriors).

On October 11, 1724, seventy Abenakis attacked Fort Dummer and killed 3 or 4 militiamen in the only known military action involving the stockade.

The park overlooks the former site of Fort Dummer which was flooded when the Vernon Dam was built on the Connecticut River in 1908.

[5] Other facilities include a small picnic area, three short hiking trails, one of which leads to a swimming hole, and a large open field.