Chapman State Park is an 862-acre Pennsylvania park near Clarendon, beside U.S. Route 6 and next to the Allegheny National Forest and State Game Land 29. Centered on the 68-acre man-made Chapman Lake, it offers swimming, boating, fishing, picnicking, camping, cottages, and yurts, with gas-powered boats barred to preserve quieter recreation. Opened in 1951, the park was named for Dr. Leroy E. Chapman, a state senator whose civic efforts helped advance creation of a state park in Warren County. Its trails link to the larger national forest, while winter sports, hunting, and regularly stocked trout waters make it a year-round outdoor destination.