THE MAKING OF A GLACIAL LAKE
The second in the Spring Speaker Series at Grove City Area Historical Society & Museum will be on Tuesday, May 19, 2026, at 6:30 p.m. The presenter for the event will be Polly Shaw. Join us as Polly discusses how the vision of a seven-mile glacial lake became Lake Arthur. It required careful site evaluation, skillful design, and construction of a dam to form the seven-mile lake that is the centerpiece of Pennsylvania’s third-largest state park. She will show photos and documents from the 1960’s that reveal how Muddy Creek, Swamp Run, Shannon Run, Big Run, and Bear Run were combined to form the lake. The historical society building, at 111 College Avenue in Grove City, is handicap accessible and air-conditioned. Light refreshments will conclude the evening.
