Aerial view of a Lehigh Portland Cement mill, circa 1950.
flipFlip to David O. Saylor, President of the Coplay Cement Company, Lehigh County, PA, 1905.
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Aerial view of Lehigh Portland Cement Mill

Credit: Courtesy of the National Canal Museum

A nearly inexhaustible source of raw cement in its simplest and cheapest condition, combined with nearby coal and easy access to rail and water transportation to make the Coplay Cement Company and the surrounding Lehigh Valley the epicenter of American portland cement manufacture in the early 1870s.

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