Remarkable Ohio

Counties

Below is a complete listing of all Ohio Historical Markers. To find a detailed marker listing including text, photographs, and locations, click on a county below. Our listing is updated by the markers program as new markers are installed and older markers are reported damaged or missing.

ALERT: The current location of this marker is unknown. If you have any information about this marker's location, please contact The Ohio History Connection. For historical and reference purposes, this listing will remain on our website. If the marker is located, we will update our website.

4-77 Early Synthetic Soda Ash Plant

Side A: Production of synthetic soda ash began here, in America’s second plant, on November 1, 1900, by Columbia Chemical Company to support Pittsburgh Plate Glass Company (now PPG Industries), marking birth of PPG’s diversified chemical operations. Principal founder John Pitcairn, first works manager Hugh Allen Galt. Plant subsequently added other chemicals. World’s deepest limestone mine (2200 feet beneath surface) established 1944. Soda ash discontinued 1973.
Side B: Same
Sponsors: PPG Industries and The Ohio Historical Society
Address: Formerly near 4829 Fairland Road, 
Barberton, 
OH, 
44203