
Nittany Valley and the surrounding ridges of the Ridge-and-Valley Appalachians define this landscape, where early 20th-century agriculture and transportation center on the Pennsylvania RR corridor. The village of Centre Hall serves as a primary hub, while the surrounding countryside is dotted with a high density of one-room schoolhouses, such as Plum Grove School, Pike School, and Diehls School, reflecting the era's decentralized rural education system.
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