1924 Map of Centre Hall

One of the most distinctive features is the presence of karst topography, evidenced by Penn Cave and the Tussey Sink, where surface waters disappear into the subterranean drainage of Sinking Creek. Larger communities like Centre Hall and Madisonburg serve as local hubs, while smaller landmarks like Red Mill and the Lookout Tower on Poe Mtn illustrate the era's reliance on local industry and fire observation. The map captures the transition from traditional valley farming to a more connected transportation corridor via Pennsylvania 45.