The gently rolling hills, lush forests and sparkling waters disguise a land that has endured the effects of continental glaciers and massive mineral extraction.

Each year over one million people visit the 16,725-acre park, yet never realize that many people helped restore the park from prior coal mining and oil and gas drilling practices. Today, the park is an outstanding example of environmental engineering achievement. The Pennsylvania Parks and Forests Foundation awarded Moraine State Park its 2008 Park of the Year.

Lake Arthur provides over forty-two miles of scenic shoreline. Its tributaries include Muddy Run, Big Run, Swamp Run, Bear Run and over 75 intermittent streams. Ranging from an average depth of 11 feet to about 36 feet deep near the dam, the shallow waters of Lake Arthur are home to a variety of warm-water fish. Frogs, newts, turtles and water snakes prowl the edges of the lake. The tall great blue heron, the short green heron, and the belted kingfisher prey on minnows and fish fry. In the early spring, common loons stop at the lake on their migration north.

Osprey may be seen flying over Lake Arthur. Once extirpated from Western Pennsylvania, these “fish hawks” have been reintroduced to Moraine through a hacking program begun in 1993. The first osprey pair to nest along Lake Arthur as a result of the reintroduction effort raised three young in 1996. Bald eagles have also been spotted nesting in the park.

A waterfowl observation deck is along old Route 422.



  • Please make your visit safe and enjoyable. Obey all posted rules and regulations and respect fellow visitors and the resources of the park.
  • Be prepared and bring the proper equipment. Natural areas may possess hazards. You are responsible for your safety and your family’s safety.
  • Alcoholic beverages are prohibited.
  • Your pets are welcome, but are not permitted in overnight or swimming areas. Pets must be on a leash and controlled and attended at all times. The park manager has the authority to set a leash length for the park. Please check with the park office for current pet regulations.
  • Please park only in designated areas and obey all traffic regulations.
  • Do your part to keep wildlife wild! Enjoy wildlife from a safe distance and do not feed or approach wild animals
  • Prevent fires by properly disposing of hot coals and having a fire in proper facilities. Do not leave a fire unattended.
  • Soliciting and posting signs is prohibited without approval from the Department of Conservation and Natural Resources.
  • Please recycle. Place trash accumulated during your stay in proper receptacles, or take it home with you.

The park is open daily from sunrise to sunset, unless otherwise posted. Park information, launch permits, cabin information and assistance can be obtained at the park office near the entrance to the South Shore. It is open year-round, Monday through Friday, 8 a.m. to 4 p.m., and weekends during the summer.

Make online reservations at: or call toll-free 888-PA-PARKS, 7 a.m. to 5 p.m., Monday to Saturday, for state park information and reservations. A secondary office at the Davis Hollow Marina on the North Shore can provide marina applications and general park information. It is open from April 15 to October 30.

Contact a park employee or dial 911. For directions to the nearest hospital, look on pay phone booths or at the park office. Nearest Hospital: Butler Memorial Hospital 911 East Brady Street Butler, PA 16001 724-283-6666

Moraine State Park
225 Pleasant Valley Road
Portersville, PA 16051-9650

Moraine State Park