McConnells Mill

Native Plant and Butterfly Trail

Moraine State Park

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Cavity Nesting Birds Trail

Jennings Environmental Education Center

McConnells Mill State Park

Moraine State Park

Bluebird, bluebird . . . Learn More.

Muddy Creek Oil Field

Moraine State Park

Award-winning Oil Field Restoration

Learn More, Schedule a Visit

Prairie Entrance Gets Makeover!

Jennings Environmental and Education Center

Volunteers plant native habitat at entrance to prairie.

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Invasive Bullies

Invasives crowd out native plants, destroying biodiversity and habitats for native insects and animals.

How can you help?

Jennings Environmental Education Center

Dedicated to bringing environmental education to the community.

Celebrate the unique ecosystem that is the Jennings prairie at Celebrate the Bloom every July.

Learn more about Jennings programs.

McConnells Mill State Park

Autumn Vista on Slippery Rock Creek

Adventure or reflection? Your choice when you visit this beautiful park.

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Moraine State Park

Kayak Into the Sunset

One of Pennsylvania's most-visited parks, so much to do for everyone!

More fun at Moraine

Upcoming Events

Wednesday, May 17, 2017, 7:00 to 8:30pm
Topic: The Creation of Lake Arthur
Jennings Environmental Education Center

Did you ever wonder about the creation of beautiful Lake Arthur and the 16,725-acre state park?

Polly Shaw, a retired teacher, history enthusiast, and park volunteer has written and published a book titled “Moraine State Park.”  In this book she discusses the involvement of Dr. Frank Preston and the Western Pennsylvania Conservancy, the Western Allegheny Railroad, the mining, the building of the dam and the land reclamation.

Using images from the park archives, her program will concentrate on the factors involved in the choice of a spot for the dam and the actual building of it. You will have a much better appreciation for Moraine State Park and Lake Arthur after attending Polly’s program.

The public is welcome to attend this meeting of Moraine, McConnells Mill and Jennings Commission (3MJC), a non-profit friends group that supports these three parks. Meetings are held on the third Wednesday of each month at 7:00 PM at Jennings Environmental Education Center.

3MJC News!

The Backyard BlueBird -- new Spring 2017 issue of the 3MJC newsletter available now.

The Backyard Bluebird -- Winter 2016 issue.

Moraine Park History Available

Moraine History Cover

About 20,000 years ago, the late Wisconsinian glaciation reached its maximum extent. Glacial deposits identify the moraine, or farthest area covered by the glacier. Muddy Creek was a north-flowing stream that was blocked by the south-advancing glacier, forming a huge lake that lasted until the glacier dam began to retreat. The lake rapidly drained, eventually exposing the vast Muddy Creek basin. Dr. Frank Preston envisioned recreating the ancient glacial lake and worked with the Western Pennsylvania Conservancy to begin the project that became 16,725 acre Moraine State Park. Its centerpiece, manmade Lake Arthur and the surrounds, provide outstanding outdoor recreation and relaxation opportunities.

A lifelong resident of Butler County, Pennsylvania, Polly Shaw is a retired teacher, history enthusiast, and long-time state park volunteer. She has selected images from park archives, resources of two park support groups, local amateur photographers, and her personal collection, to tell the history of the immediate area, including the Western Allegheny Railroad, and the impressive reclamation of the land that had been ravaged by mining and oil. Pictures illustrate the monumental work that transformed the land, from construction of the dam and moving a US highway, to repurposing the surrounding area to create today’s Moraine State Park.

The book can be purchased at various local stores, including the Owlet Gift Shop at Moraine, the Nature Shop at Jennings, A complete list of locations is available upon request.