DCNR Calendar of Events

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

Spring Wildflower Walk

Join members of the Botanical Society of Western Pennsylvania, and park staff, as we explore the woods along a portion of the North Country National Scenic...

5/4 1pm
Gristmill Greeter Volunteer Training Day

The historic gristmill is a precious gem of our history. We need volunteers willing to help out at the historic gristmill one day a week during the 2019...

5/18 9am
Twilight Hike in Hell's Hollow

Did you ever wonder how this lovely valley may have gotten its name? What did it look like in the 1800’s? Join a park guide to explore some unique geology...

6/14 6:30pm
Salamander Safari

Saturday, July 6, 2019 – Salamander Safari 4:00 PM – 5:30 PM – Meet at the Hells Hollow Trail Parking Lot – McConnells Mill Join us for an afternoon of...

7/6 4pm
DiscoverE Penn's Adventurers Day Camp

Penn's Adventurers Day Camp will be held on three Thursdays: July 25, August 1, and August 8, 2019. 9-12 year olds are invited to become Penn’s Adventurers...

8/8 10am

Recent Events

Winter Tree ID


Recent Activity

Staci Gustafson

Staci Gustafson left a positive review 9/22/2018

Thanks, Mike, for a fun and informative evening. I’m looking forward to seeing some owls in my own yard.

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.