Fee: Free entry
About this park
Fort Griswold Battlefield State Park in Groton preserves the site of a major Revolutionary War battle. In September 1781, British troops led by Benedict Arnold attacked the fort in what became known as the Battle of Groton Heights, and many defenders were killed. Visitors can walk the earthworks and grounds and climb the Groton Monument, a tall stone tower built to honor the fallen, for views over the Thames River and New London. A small museum shares the story of the battle and the people who fought here. Entry is free. Combine your visit with a stop at Fort Trumbull across the river for a fuller picture of the region's military history.
Fort Griswold Battlefield State Park FAQ
Where is Fort Griswold Battlefield State Park located?
Fort Griswold Battlefield State Park is in Groton, Connecticut, at Monument St & Thames St. GPS coordinates: 41.3875, -72.0853. Get directions.
Is there an entrance fee at Fort Griswold Battlefield State Park?
Free entry. Fees can change by season, so confirm with the park before you go.
How do I contact Fort Griswold Battlefield State Park?
You can call (860) 449-6877 or email deep.stateparks@ct.gov. The park office can confirm RV site availability, hookups, length limits and current conditions.
Are there RV campgrounds near Fort Griswold Battlefield State Park?
Yes. The closest RV-friendly campgrounds listed on ParkedRV are:
- West Thompson Lake Campground (40.4 mi, reservable)
- Indian Hollow (76.8 mi, reservable)
- Camp Gateway- Brooklyn Ny (108.6 mi, reservable)
How current is this information about Fort Griswold Battlefield State Park?
This listing was last updated on September 20, 2026. If something is out of date, let us know and we'll fix it.