Old Furnace State Park

Old Furnace State Park is a forested state park in Killingly, Connecticut, covering about 367 acres with multiple trails, ponds, and wetland areas. The property offers walking routes of varying length through wooded sections and open water features scattered throughout.

An iron furnace operated on this site during the 1700s, producing horseshoes for the Continental Army during the American Revolutionary War. The facility was part of the region's industrial activity and supported military operations through metalworking.

The Connecticut Forest and Park Association maintains the Blue-Blazed Old Furnace Trail, connecting visitors with regional outdoor recreation traditions.

The park entrance near U.S. Route 6 has a parking area for visitors. Hiking, fishing, and hunting are the main outdoor activities available on the grounds.

Stone foundations and walls from the old furnace remain on the property today, partially hidden within the second-growth forest. Walking through the park, you may come across these industrial remains scattered along trails and near Furnace Brook.

Location: Connecticut

Inception: 1918

Elevation above the sea: 119 m

Website: http://ct.gov/dep/cwp/view.asp?A=2716&Q=435384

GPS coordinates: 41.78194,-71.86694

Latest update: December 12, 2025 17:45