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U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Edgar Thomson Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Braddock, Allegheny County, PA

U.S. Steel Edgar Thomson Works, Basic Oxygen Steelmaking Plant, Along ...

Picryl description: Public domain photo of a factory, warehouse, commercial or industrial building, free to use, no copyright restrictions image.

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Edgar Thomson Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Braddock, Allegheny County, PA

U.S. Steel Edgar Thomson Works, Basic Oxygen Steelmaking Plant, Along ...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Edgar Thomson Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Braddock, Allegheny County, PA

U.S. Steel Edgar Thomson Works, Basic Oxygen Steelmaking Plant, Along ...

Picryl description: Public domain image of an industrial building, power plant, electric generator, 20th century architecture, free to use, no copyright restrictions.

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More