McConnells Mill State Park

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 steeps sides and the valley floor is littered with huge boulders and is a national natural landmark. A gristmill built in the 1800s is open for tours. The park is open from sunrise to sunset, year-round.

2716 McConnells Mill Road, Portersville, PA 16051, USA









Dustin Drew


Upcoming Events

Conservation Volunteer Gristmill Clean Up

Thousands of visitors come to enjoy this beautiful landmark every year. Please join us to help get the historic gristmill and surrounding area looking its...

5/6 1pm
McConnells Mill Heritage Festival

September 29 & 30, 2018 Saturday 10:00 am to 5:00 pm Sunday 11:00 am to 5:00 pm History comes alive at the 26th Annual Heritage Festival at McConnells Mill...

9/29 10am
McConnells Mill Heritage Festival

History comes alive at the 26th Annual Heritage Festival at McConnells Mill State Park. The Festival, sponsored by the Portersville-Prospect Rotary,...

9/30 11am

Recent Events

Winter Tree ID


Fall Foliage Hike


Recent Activity

Rachel Powell

Rachel Powell left a positive review 8/19/2017

I feel like I need to take this class a half a dozen times to truly absorb all the good content of the class. The teacher was very good and held attention very well. The free booklet to help me id trees on my own is a huge help to me and I would recommend this class to anyone with any interest in trees.

Jean Barron

Jean Barron left a positive review 9/25/2016

Enjoyed the guided tour of the mill. Loved the bluegrass music--spent the afternoon listening.