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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184 results
Location Area Address
MetalTech PittsburghOakland 2400 Second Avenue Pittsburgh, PA 15219
Midland Works --
Miller Forge Co. Rankin --
Mitchell, Stevenson & Co Foundry PittsburghStrip District --
Moltrup Steel Products Co. Beaver Falls --
Monongahela Foundry PittsburghDowntown --
Monongahela Furances/National Works, National Tube/US Steel McKeesport --
Monongahela Iron & Steel Co. PittsburghHays --
Monongahela Iron Works/Oliver Iron & Steel Co/Quality Rolls --
Monongahela Tin Plate Co/Monongahela Works, American Sheet & Tin Plate/US Steel PittsburghSouth Side --
National Bolt & Nut PittsburghLawrenceville --
National Car Wheel Works West Homestead --
National Roll 400 Railroad Avenue Avonmore, PA 15618
National Steel & Wire Co. Blawnox --
National Supply Co./ARMCO Steel/Koppel Steel Ambridge --
National Tube Works PittsburghSouth Oakland --
National Works, National Tube/ U. S. Steel McKeesport --
Neely Nut & Bolt Co PittsburghSouth Side --
Neville Iron Co. --
Neville Island Furnace/American Steel & Wire/Carnegie Steel/USS/Pittsburgh Coke & Iron/ Neville Plan Neville Island --
New Brighton Works, Townsend Co. New Brighton --
New York & Cleveland Coke Ovens --
Novelty Iron Works PittsburghDowntown --
Novelty Tool Works Verona --
O’Hara Boiler Works, Foundry & Machine Works PittsburghDowntown --
Oliphant Furnace --
Oliver Wire Co. PittsburghSouth Side --
Oliver Wire Co. Barbed Wire Works & Rolling Mill PittsburghSouth Side --
Ormsby Iron Works/Republic Iron Works Dept, National Tube Works/Republic Works, US Steel PittsburghSouth Side --
Otto Hoffman’s Beehive Coke Ovens Glassport --