Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 3, Donner ...
Significance: No. 3 Blast Furnace, also known as "Jane," was blown-in in 1948. This furnace was considerably larger than either Blast Furnace No. 1 or No. 2, with a hearth diameter of 28 feet, and 18 tuyeres. ... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 1 & No. 2,...
Significance: No. 1 and No. 2 Blast Furnaces were blown-in in 1913. The two furnaces were nearly identical in design and capacity at the time of construction and shared a common cast house, an unusual arrangem... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
United States Pipe & Foundry Company Plant, 2023 St. Louis Avenue at I...
Significance: The Bessemer plant of the U.S. Pipe Company was one of the first pipe factories established in Alabama, in a region that became synonymous with foundry production. U.S. Pipe owned and controlled ... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 3, Donner ...
Significance: No. 3 Blast Furnace, also known as "Jane," was blown-in in 1948. This furnace was considerably larger than either Blast Furnace No. 1 or No. 2, with a hearth diameter of 28 feet, and 18 tuyeres. ... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 3, Donner ...
Significance: No. 3 Blast Furnace, also known as "Jane," was blown-in in 1948. This furnace was considerably larger than either Blast Furnace No. 1 or No. 2, with a hearth diameter of 28 feet, and 18 tuyeres. ... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 1 & No. 2,...
Significance: No. 1 and No. 2 Blast Furnaces were blown-in in 1913. The two furnaces were nearly identical in design and capacity at the time of construction and shared a common cast house, an unusual arrangem... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 3, Donner ...
Significance: No. 3 Blast Furnace, also known as "Jane," was blown-in in 1948. This furnace was considerably larger than either Blast Furnace No. 1 or No. 2, with a hearth diameter of 28 feet, and 18 tuyeres. ... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 3, Donner ...
Significance: No. 3 Blast Furnace, also known as "Jane," was blown-in in 1948. This furnace was considerably larger than either Blast Furnace No. 1 or No. 2, with a hearth diameter of 28 feet, and 18 tuyeres. ... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 3, Donner ...
Significance: No. 3 Blast Furnace, also known as "Jane," was blown-in in 1948. This furnace was considerably larger than either Blast Furnace No. 1 or No. 2, with a hearth diameter of 28 feet, and 18 tuyeres. ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
United States Pipe & Foundry Company Plant, 2023 St. Louis Avenue at I...
Significance: The Bessemer plant of the U.S. Pipe Company was one of the first pipe factories established in Alabama, in a region that became synonymous with foundry production. U.S. Pipe owned and controlled ... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 3, Donner ...
Significance: No. 3 Blast Furnace, also known as "Jane," was blown-in in 1948. This furnace was considerably larger than either Blast Furnace No. 1 or No. 2, with a hearth diameter of 28 feet, and 18 tuyeres. ... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 1 & No. 2,...
Significance: No. 1 and No. 2 Blast Furnaces were blown-in in 1913. The two furnaces were nearly identical in design and capacity at the time of construction and shared a common cast house, an unusual arrangem... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 1 & No. 2,...
Significance: No. 1 and No. 2 Blast Furnaces were blown-in in 1913. The two furnaces were nearly identical in design and capacity at the time of construction and shared a common cast house, an unusual arrangem... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
United States Pipe & Foundry Company Plant, 2023 St. Louis Avenue at I...
Significance: The Bessemer plant of the U.S. Pipe Company was one of the first pipe factories established in Alabama, in a region that became synonymous with foundry production. U.S. Pipe owned and controlled ... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 3, Donner ...
Significance: No. 3 Blast Furnace, also known as "Jane," was blown-in in 1948. This furnace was considerably larger than either Blast Furnace No. 1 or No. 2, with a hearth diameter of 28 feet, and 18 tuyeres. ... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 1 & No. 2,...
Significance: No. 1 and No. 2 Blast Furnaces were blown-in in 1913. The two furnaces were nearly identical in design and capacity at the time of construction and shared a common cast house, an unusual arrangem... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 1 & No. 2,...
Significance: No. 1 and No. 2 Blast Furnaces were blown-in in 1913. The two furnaces were nearly identical in design and capacity at the time of construction and shared a common cast house, an unusual arrangem... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 1 & No. 2,...
Significance: No. 1 and No. 2 Blast Furnaces were blown-in in 1913. The two furnaces were nearly identical in design and capacity at the time of construction and shared a common cast house, an unusual arrangem... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
United States Pipe & Foundry Company Plant, 2023 St. Louis Avenue at I...
Significance: The Bessemer plant of the U.S. Pipe Company was one of the first pipe factories established in Alabama, in a region that became synonymous with foundry production. U.S. Pipe owned and controlled ... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 1 & No. 2,...
Significance: No. 1 and No. 2 Blast Furnaces were blown-in in 1913. The two furnaces were nearly identical in design and capacity at the time of construction and shared a common cast house, an unusual arrangem... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
East Broad Top Railroad & Coal Company, State Route 994, West of U.S. ...
Significance: One of the last narrow-gauge steam railroads in the United States, the EBT shop complex at Rockhill Furnace contains an intact machine shop, blacksmith shop, foundry, turntable and roundhouse, as ... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
Pittsburgh Steel Company, Monessen Works, Donner Avenue, Monessen, Wes...
Significance: One of several large steel making complexes in the Monongahela River Valley in southwestern Pennsylvania, the Pittsburgh Steel Company's Monessen Works grew from a rod and wire mill to a fully int... More
United States Pipe & Foundry Company Plant, 2023 St. Louis Avenue at I...
Significance: The Bessemer plant of the U.S. Pipe Company was one of the first pipe factories established in Alabama, in a region that became synonymous with foundry production. U.S. Pipe owned and controlled ... More
United States Pipe & Foundry Company Plant, 2023 St. Louis Avenue at I...
Significance: The Bessemer plant of the U.S. Pipe Company was one of the first pipe factories established in Alabama, in a region that became synonymous with foundry production. U.S. Pipe owned and controlled ... More
Pittsburgh Steel Company, Monessen Works, Open Hearth Plant, Donner Av...
Significance: The open hearth steelmaking plant of the Monessen Works was built in 1908. Pittsburgh Steel installed eight 95 ton, basic open hearth furnaces in a 1,055 x 280 feet steel-frame, metal-clad buildi... More
Pittsburgh Steel Company, Monessen Works, Blast Furnace No. 3, Donner ...
Significance: No. 3 Blast Furnace, also known as "Jane," was blown-in in 1948. This furnace was considerably larger than either Blast Furnace No. 1 or No. 2, with a hearth diameter of 28 feet, and 18 tuyeres. ... More