Old Furnace State Park ‘s 367-acre park was home to 18th-century foundry, a major supplier of horseshoes to Continental Army in revolutionary war. Hikers are rewarded with 10 mile wide panoramic views after a 0.75 mile hike rising 200’ up. Loop trail is 4 miles. 31 acre lake has car-top/carry-in boat launch, paddling & fishing. Hunting in season. No fee.
Killingly, CT 06239