Ehrhart's Mill Historic District - Credit: Wikimedia Commons
Ehrhart's Mill Historic District is a national historic district located along Saucon Creek at Lower Saucon Township in Northampton County in the Lehigh Valley region of eastern Pennsylvania. The district includes nine contributing buildings, two contributing sites, and four contributing structures associated with a 19th and early 20th century grist mill. Read more on Wikipedia
Source: en.wikipedia.org