This virtual exhibit shows the intense concentration of both large and small mills that once dominated the landscape of southwestern PA. Search the map to find the locations of mills, coke ovens, and foundries as they stood in different points in history. Click on a mill icon to learn more about that site.

Steel Footprints

A Virtual Tour of the Pittsburgh Industrial District, 1750 – Present

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370 results
Location Area Address
A. J. Nellis & Co. PittsburghNorth Side --
A. M. Byers & Co., Ambridge Ambridge --
A. M. Byers Co. PittsburghSouth Side --
Allegheny Foundry Company PittsburghNorth Side --
Allegheny Iron Works PittsburghNorth Side --
Allegheny Ludlum, Brackenridge Brackenridge 100 River Road Brackenridge, PA 15014-1597
Allegheny Ludlum, West Leechburg West Leechburg --
Alliance Iron Works One mile North of Dawson, PA on SR 1002
Allis-Chalmers Mfg. PittsburghNorth Side --
American Axe & Tool Co. Glassport --
American Bridge Company Ambridge --
American Die & Forge Co. Rankin --
American Foundry & Construction Co. PittsburghHazelwood --
American Nut & Bolt Fastener Co. PittsburghNorth Side --
American Shear Knife Company --{fp_address}
American Sheet & Tin Plate Co. Vandergrift, PA
American Steel & Wire Co. --
American Steel & Wire Co. PittsburghNorth Side --
American Steel Band Co. PittsburghNorth Side --
American Steel Foundries PittsburghLawrenceville --
Anderson & Potter Near Mazeroski Way and W. General Robinson Allegheny City, PA
Apollo Steel Co. Apollo --
Atlas Foundry & Machine Works PittsburghStrip District --
Aztec Steel Co. --
Baeuerlein Bros. & Co. Foundry Millvale --
Baird Machine Co. PittsburghStrip District --
Banson Boiler Works PittsburghDowntown --
Barber Spring Co. 1 McCandless Ave, Pittsburgh, PA 15201
Barrett Machine Co. PittsburghNorth Side --
Barrett Mfg. Co. --