McConnell’s Mill State Park

The park is about 40 miles north of Pittsburgh, via I-79, near the intersection of PA 19 and US 422.

2697 McConnells Mill Road
Portersville, PA 16051

McConnells Mill State Park, in Lawrence County, encompasses 2,546 acres of the spectacular Slippery Rock Creek Gorge. Created by the draining of glacial lakes thousands of years ago, the gorge has steep sides and the valley floor is littered with huge boulders. The gristmill was built in the 1800’s to grind grain for the community. The park is open from sunrise to sunset, year-round.

Enjoy picnicking, fishing, climbing and rappelling, whitewater boating, trail of Geology and 9 miles of hiking trails: Hells Hollow, Kildoo, Slippery Rock Gorge and Alpha Pass which includes the North Country Trail.

The historic gristmill at McConnells Mill State Park is open Memorial Day through late September on Wednesdays through Sundays from 10:30 AM to 3:30 PM. Park at the Kildoo Picnic Area and hike down the stone stairs to the mill. Limited parking, for people with disabilities, may be available beside the mill.

Interpretive tours of the historic mill, given by staff or volunteer docents, are available at 1:00 and 2:00 PM. Interpretive tours for groups may be scheduled by calling the Moraine Park office 724 368-8811.

McConnells Mill Heritage Festival is held on the last full weekend in September. The festival celebrates the operational era of the Old Mill (1852-1928). Visitors can witness artisans and crafts people making art and try old-time games and crafts. Other activities include mill tours, corn grinding demonstrations, musical entertainment, a Civil War encampment and food vendors.