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

Select Neighborhood

33 results
Location Area Address
Keystone Axle Co. Beaver Falls --
Keystone Foundry PittsburghNorth Side --
Keystone Iron Works PittsburghSouth Oakland --
Keystone Iron Works McKees Rocks --
Kidd Bros. & Burgher Steel Wire Co./Kidd Works, Vulcan, Kidd Steel Div., J.K. Porter Co., Inc./P Aliquippa --
Kier & Foster Coal Yard PittsburghStrip District --
Koehler & Steng Scrap Iron Co. PittsburghStrip District --
Koppel Steel Co. Beaver Falls --
Koppers Co., Bridgeville Bridgeville --
LaBelle Works PittsburghNorth Side --
Lafayette Foundry PittsburghNorth Side --
Lane Steel Co. McKees Rocks 4 River Road McKees Rocks, PA 15136
Latrobe Electric Steel Co. --
Laurel Furnace --
Leechburg Foundry & Machine Co. Leechburg --
Levinson Steel Co. PittsburghSouth Side S. 20th Street and Wharton Street Pittsburgh, PA 15213
Liggett Spring & Axle Co. PittsburghNorth Side --
Lindsay & McCutcheon --
Lower Union Mills PittsburghStrip District --
Lucy Furnaces, Kloman, Carnegie & Co./Carnegie Steel/US Steel PittsburghLawrenceville --
Max Solomon Scrap Iron Carnegie --
McClintic-Marshall Construction Co., Carnegie Carnegie --
McClintic-Marshall Construction Co., Rankin Rankin --
McClure Tin Plate PittsburghDowntown --
McConway & Torley Corp. PittsburghLawrenceville --
McKay Co. Iron & Steel Chains/U.S. Chain & Forge Co. McKees Rocks --
McKees Rocks Forgings McKees Rocks --
McKim & Co Coal Yards PittsburghLawrenceville --
McNeil & Butler Machine Shop PittsburghDowntown --
Mesta Machine Co. West Homestead --