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Natrona Heights in Allegheny County, Pennsylvania — The American Northeast (Mid-Atlantic)
 

Penn Salt Manufacturing Company

 
 
Penn Salt Manufacturing Company Marker image. Click for full size.
Photographed by Bradley Owen, August 15, 2025
1. Penn Salt Manufacturing Company Marker
Inscription.
Natrona Plant
1850 - 1960
Founding Fathers
George T. Lewis • Samuel E. Fisher • Charles Lenning

 
Erected 1986 by Pennwalt Corporation.
 
Topics. This historical marker is listed in this topic list: Industry & Commerce. A significant historical year for this entry is 1850.
 
Location. 40° 36.875′ N, 79° 43.347′ W. Marker is in Natrona Heights, Pennsylvania, in Allegheny County. It is at the intersection of Philadelphia Avenue and Wood Street, on the right when traveling north on Philadelphia Avenue. Touch for map. Marker is at or near this postal address: 1 Philadelphia Avenue, Natrona Heights PA 15065, United States of America. Touch for directions.

Regionally, this marker is in Greater Pittsburgh. It is also in the American Northeast, in the Mid-Atlantic, in the Ohio River Valley, in Appalachia, and specifically in Northern Appalachia. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Viceroyalty of New France, the Haudenosaunee (Iroquois) Confederacy, and one of the original Thirteen Colonies.

Other nearby markers. At least 8 other markers are within walking distance of this marker: Churches Founded In Natrona (here, next to this marker); Harrison Township (here, next to this marker); Pond Street School Bell (here, next to this marker); Harrison Township Veterans Memorial (here, next to this marker); Veterans Memorial (here, next to this marker); Natrona Honor Roll (a few steps from this marker); Natrona Bank Building (about 300 feet away, measured in a direct line); Welcome To Natrona's Penn Salt National Historic District (about 800 feet away). Touch for a list and map of all markers in Natrona Heights.
 
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Penn Salt Manufacturing Company Marker image. Click for full size.
Photographed by Bradley Owen, August 15, 2025
2. Penn Salt Manufacturing Company Marker
Marker is on the right.
 
 
Credits. This page was last revised on August 26, 2025. It was originally submitted on August 26, 2025, by Bradley Owen of Morgantown, West Virginia. This page has been viewed 119 times since then and 26 times this year. Photos:   1, 2. submitted on August 26, 2025, by Bradley Owen of Morgantown, West Virginia.
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Jun. 29, 2026