All Other/Special in Whitehall

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Historical Marker 768x768

Coplay Cement Plant

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Year Built: 1871
Pavement Type: Other
Although this is not a pavement, without Portland Cement, a concrete pavement we cannot construct. Pennsylvania is our Nation’s Birthplace of the Portland Cement Industry. In 1871, David O. Saylor applies for patent for the cement manufacturing process. The Coplay Company facility still exists as a historic site in Northumberland, Pennsylvania. Read more...