Nestled in the rolling hills of Westmoreland County, Keystone State Park offers 1,200 acres of accessible wilderness that feels worlds away from the Pittsburgh metro just an hour to the west. Established in 1945, the park grew from reclaimed coal mining land into one of western Pennsylvania’s most versatile outdoor destinations — a testament to what careful restoration can achieve.

Keystone Lake sits at the heart of the park, a 78-acre reservoir popular with anglers chasing bass, catfish, and panfish. A paved trail circles the lake, making it ideal for easy walks, jogging, or cycling with kids. Beyond the lake, hikers can explore over 12 miles of trails that wind through mixed hardwood forests and open meadows, with options ranging from flat, family-friendly loops to more rugged woodland paths.

Swimmers can cool off at the park’s sand beach during summer months, and the lake welcomes non-powered and electric boats. Winter transforms Keystone into a quiet retreat for cross-country skiing, snowshoeing, and ice fishing when conditions allow.

The park’s campground provides a solid base for overnight stays, with both tent and RV-friendly sites scattered among the trees. Modern amenities and a camp store keep things comfortable without losing the woodsy feel.

Late spring through early fall is prime time here, with summer drawing the biggest crowds to the beach and lake. For a quieter visit, aim for weekdays in September or October when the surrounding hardwoods put on a spectacular fall color show and the trails are practically yours alone.

Explore Nearby

• Allegheny National Forest — National Forest in Pennsylvania
• National Scenic Byways Program – Pennsylvania — Scenic Byway in Pennsylvania
• Pennsylvania State Route System — Scenic Byway in Pennsylvania
• Welle Hess Covered Bridge No. S1 — Covered Bridge in Pennsylvania
• Twining Ford Covered Bridge — Covered Bridge in Pennsylvania