Kennecott Copper Corporation, Concentration Mill, On Copper River & No...
Significance: The Concentration Mill was a dynamic, ever changing structure. Its form reflected the ever-increasing complexity of the ores mined at Kennecott. The building was first erected in 1908 as the low... More
Kennecott Copper Corporation, Concentration Mill, On Copper River & No...
Significance: The Concentration Mill was a dynamic, ever changing structure. Its form reflected the ever-increasing complexity of the ores mined at Kennecott. The building was first erected in 1908 as the low... More
Kennecott Copper Corporation, Concentration Mill, On Copper River & No...
Significance: The Concentration Mill was a dynamic, ever changing structure. Its form reflected the ever-increasing complexity of the ores mined at Kennecott. The building was first erected in 1908 as the low... More
Escanaba, ore docks, cyanotype - Detroit publishing company. Public do...
View from building roof overlooking dock area. Listed in Detroit, Catalogue F (1899). "Detroit Photographic Co." Also have panoramic photographic print, LOT 12686, no. 23. Detroit Publishing Co. no. 10204. Gift... More
Steam shovel at work, Burt Mine, Mesabi Range, Minn., U.S.A
No. 6964. Public domain photograph of stereoscopic card, free to use, no copyright restrictions image - Picryl description
Hauling up a skip full of ore to dump at mouth of a shaft-iron mine at...
Stereograph showing mine skip, iron ore, and thousands of logs. H73738 U.S. Copyright Office. Copyright 1906 by Underwood & Underwood. U-85497. On mount: Works and Studios Arlington, N.J., Littleton, N.H., Wash... More
Sergei Prokudin Gorskiy: Dobycha #8 na gori︠e︡ Blagodatʹ, photographic...
In album: Views in the Ural Mountains, survey of industrial area, Russian Empire, LOT 10335-A, no. 161. Credit line: Prokudin-Gorskiĭ photograph collection, Library of Congress, Prints and Photographs Division.... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Mizpah Mine, Tonopah, Nye County, NV
Significance: The Tonopah Mining boom was the first to revive the mining industry in Nevada after two decades of depression. Mining activity was long sustained at Tonopah largely due to the amazing production ... More
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Kennecott Copper Corporation, Company Store & Warehouse, On Copper Riv...
Significance: The Store and Warehouse building was built in 1917, along with several other additions to Kennecott Company Town. The concentration of functions in the new building reflected the continued growth ... More
Escanaba, Mich. Ore docks - Detroit publishing company. Public domain.
"Detroit Photographic Co." Mounted back to back with "01967. Escanaba, Mich. Ore docks." May have been part of an album. Listed in Detroit, Catalogue F (1899). Detroit Publishing Co. no. [019]68. Gift; State Hi... More
Escanaba, Mich. Vessel loading - Detroit publishing company. Public do...
"Detroit Photographic Co." Listed in Detroit, Catalogue F (1899). Mounted back to back with "01970. Escanaba, Mich. Coal docks." May have been part of an album. Detroit Publishing Co. no. 01969. Gift; State His... More
Unloading ore from whaleback, Buffalo
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
![Unloading at ore docks, Cleveland, O[hio]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDEvMDEvMDEvdW5sb2FkaW5nLWF0LW9yZS1kb2Nrcy1jbGV2ZWxhbmQtb2hpby0xMDI0LmpwZw%3D%3D/40/32/webp "Unloading at ore docks, Cleveland, O[hio]")
Unloading at ore docks, Cleveland, O[hio]
Picryl description: Public domain image of a ship in the sea, harbor, maritime, free to use, no copyright restrictions.
Steamers loading at the Mesabi i.e. Missabe ore docks, Duluth, Minn
Corresponding glass transparency (with same series code) available on videodisc frame 1A-30212. "G 2198" on transparency. Detroit Publishing Co. no. 017968. Gift; State Historical Society of Colorado; 1949.
Pennsylvania R.R. ore docks, unloading ore from a lake freighter by me...
Public domain photograph - United States during 1930s Great Depression, free to use, no copyright restrictions image - Picryl description
After the ore is weighed in the "Hewlett" i.e. "Hulett" machine it is ...
12002-16. Transfer from U.S. Office of War Information, 1944. General information about the FSA/OWI Color Photographs is available at http://hdl.loc.gov/loc.pnp/pp.fsac Title from FSA or OWI agency caption. Add... More
Escanaba, Mich. ore docks - Detroit publishing company. Public domain.
Listed in Detroit, Catalogue F (1899). "Detroit Photographic Co." Also have cyanotype, LOT 12686, no. 19, which matches left side of panorama. Detroit Publishing Co. no. 010204. Gift; State Historical Society o... More
Water front, Toledo, Ohio - Public domain image. Dry plate negative.
Videodisc images are out of sequence; actual left to right order is 1A-10275, 10274, 10273, 10272, 10271. "G 5906," "G 5907," "G 5909," "G 5911," and "G 5913" on left to right negatives respectively. Detroit Pu... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Sound Democrat Mill, Placer Creek Valley, Silverton, San Juan County, ...
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Kennecott Copper Corporation, Company Store & Warehouse, On Copper Riv...
Significance: The Store and Warehouse building was built in 1917, along with several other additions to Kennecott Company Town. The concentration of functions in the new building reflected the continued growth ... More
Unloading a lake freighter at the Pennsylvania Railroad iron ore docks...
12002-16. Transfer from U.S. Office of War Information, 1944. General information about the FSA/OWI Color Photographs is available at http://hdl.loc.gov/loc.pnp/pp.fsac Title from FSA or OWI agency caption. Add... More
Pennsylvania R.R. ore docks, unloading iron ore from a lake freighter ...
Public domain photograph of train tracks, railroad, free to use, no copyright restrictions image - Picryl description
Pennsylvania R.R. ore docks, unloading iron ore from a lake freighter ...
Public domain photograph of train tracks, railroad, free to use, no copyright restrictions image - Picryl description
Escanaba, Mich., ore docks - Glass negative photogrpah. Public domain.
Negatives form a two-part panorama. "Copyright 1898 by Detroit Photographic Co." on both negatives. "01968" on left negative; "1967" on right negative. Detroit Publishing Co. no. 01968. Detroit Publishing Co. p... More
Hauling up a skip full of ore to dump at mouth of a shaft-iron mine at...
Stereograph showing mine skip, iron ore, and thousands of logs. H73738 U.S. Copyright Office. Copyright 1906 by Underwood & Underwood. U-85497. On mount: Works and Studios Arlington, N.J., Littleton, N.H., Wash... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Silver King Mining Company, Ore Loading Station, Park Avenue, Park Cit...
Significance: One problem encountered by the Silver King Mining Company was the transportation of its ore over the rough terrain between the mine and the railhead in Park City. The solution was a 7,000' long ae... More
Vanadium Corporation of America (VCA) Naturita Mill, Dryers, 3 miles N...
Significance: The VCA Naturita Mill Office Building was constructed in 1960-61 as part of an effort to reconstruct the facility as an experimental uranium and vanadium ore concentrating facility. Between 1958 (... More
Escanaba, Mich. ore docks, mammoth plate negative
Public domain image of a historic view of Boston Harbor, Massachusetts, free to use, no copyright restrictions - Picryl description
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Escanaba, Mich. Coal docks - Detroit publishing company. Public domain...
Listed in Detroit, Catalogue F (1899). Mounted back to back with "01969. Escanaba, Mich. Vessel loading." May have been part of an album. "Detroit Photographic Co." Detroit Publishing Co. no. 01970. Gift; State... More
Unloading ore and loading fuel, Lackawanna ore docks, Buffalo, N.Y.
Picryl description: Public domain image related to an industrial revolution, industry history, factory building, free to use, no copyright restrictions image.
Hanna's ore plant, Erie, Pa - Public domain image. Dry plate negative.
Date based on Detroit, Catalogue J (1901). On ship: City of Glasgow, the Buckeye Steamship Co. Detroit Publishing Co. no. 012896. Gift; State Historical Society of Colorado; 1949.
Unloading ore at Conneaut, Ohio, Brown conveying hoists
Detroit Publishing Co. no. 012889. Gift; State Historical Society of Colorado; 1949.
![Whirleys unloading ore, Penna. R.R. [Pennsylvania Railroad] docks, Erie, Pennsylvania](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDAvMDEvMDEvd2hpcmxleXMtdW5sb2FkaW5nLW9yZS1wZW5uYS1yci1wZW5uc3lsdmFuaWEtcmFpbHJvYWQtZG9ja3MtZXJpZS1wYS0xMDI0LmpwZw%3D%3D/40/31/webp "Whirleys unloading ore, Penna. R.R. [Pennsylvania Railroad] docks, Erie, Pennsylvania")
Whirleys unloading ore, Penna. R.R. [Pennsylvania Railroad] docks, Eri...
Public domain photograph of train tracks, railroad works, construction workers, free to use, no copyright restrictions image - Picryl description
Unloading ore from whaleback, Buffalo
Date based on Detroit, Catalogue J (1901). Detroit Publishing Co. no. 011474. Gift; State Historical Society of Colorado; 1949.
Cleveland & Pittsburgh ore docks, Cleveland, Brown conveying hoists
Detroit Publishing Co. no. 012865. Gift; State Historical Society of Colorado; 1949.
Steamers at the South Shore Ry. ore docks, Marquette, Mich.
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
Water front, Toledo, Ohio - Public domain image. Dry plate negative.
Videodisc images are out of sequence; actual left to right order is 1A-10275, 10274, 10273, 10272, 10271. "G 5906," "G 5907," "G 5909," "G 5911," and "G 5913" on left to right negatives respectively. Detroit Pu... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Tintic Standard Reduction Mill, Warm Springs Mountain, Goshen, Utah Co...
Significance: The Tintic Standard Reduction Mill was the only use of the antiquated Augustin process in the United States during the early 1920s. The Augustin process was an acid-brine chlorodizing and leaching... More
Mizpah Mine, Tonopah, Nye County, NV
Significance: The Tonopah Mining boom was the first to revive the mining industry in Nevada after two decades of depression. Mining activity was long sustained at Tonopah largely due to the amazing production ... More
Mountain King Gold Mine & Mill, 4.3 Air miles Northwest of Copperopoli...
Significance: The Mountain King Mill was originally constructed as a stamp mill for processing gold ore, and was in intermittent but fairly continuous use from 1905-1946. It was significantly altered in a numb... More
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Kennecott Copper Corporation, Company Store & Warehouse, On Copper Riv...
Significance: The Store and Warehouse building was built in 1917, along with several other additions to Kennecott Company Town. The concentration of functions in the new building reflected the continued growth ... More
Kennecott Copper Corporation, Concentration Mill, On Copper River & No...
Significance: The Concentration Mill was a dynamic, ever changing structure. Its form reflected the ever-increasing complexity of the ores mined at Kennecott. The building was first erected in 1908 as the low... More
Kennecott Copper Corporation, Concentration Mill, On Copper River & No...
Significance: The Concentration Mill was a dynamic, ever changing structure. Its form reflected the ever-increasing complexity of the ores mined at Kennecott. The building was first erected in 1908 as the low... More
Pitch Lake, Trinidad, W.I - Public domain image. Dry plate negative.
Date based on Detroit, Catalogue J (1901). Men digging asphalt. "45" on negative. Detroit Publishing Co. no. 08907. Gift; State Historical Society of Colorado; 1949.
The Escanaba ore docks view, photochrome print postcard.
In album prepared by Detroit Photographic Co. to use as a catalog in its office. Detroit Publishing Co., no. 53491. Gift; State Historical Society of Colorado; 1955.
Thornberger hoists unloading ore, Lackawanna ore docks, Buffalo, N.Y
"94" and "9" 16 1/50 S 1 P.M. Tol. St." on negative. Detroit Publishing Co. no. 012928. Gift; State Historical Society of Colorado; 1949.
The Manda unloading ore, Cleveland, Ohio
Title from jacket. "No. 107 G.F.C." on negative. Detroit Publishing Co. no. 500403. Gift; State Historical Society of Colorado; 1949.
Thornberger hoists unloading ore, Lackawanna ore docks, Buffalo, N.Y.
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description
Presque Isle ore docks, Marquette, Mich.
Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.
Ore unloading, American Steel & Wire Co. Company plant, Cleveland, Ohi...
Detroit Publishing Co. no. 072374. Gift; State Historical Society of Colorado; 1949.
Water front, Toledo, Ohio - Public domain image. Dry plate negative.
Videodisc images are out of sequence; actual left to right order is 1A-10275, 10274, 10273, 10272, 10271. "G 5906," "G 5907," "G 5909," "G 5911," and "G 5913" on left to right negatives respectively. Detroit Pu... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Tintic Standard Reduction Mill, Warm Springs Mountain, Goshen, Utah Co...
Significance: The Tintic Standard Reduction Mill was the only use of the antiquated Augustin process in the United States during the early 1920s. The Augustin process was an acid-brine chlorodizing and leaching... More
Mizpah Mine, Tonopah, Nye County, NV
Significance: The Tonopah Mining boom was the first to revive the mining industry in Nevada after two decades of depression. Mining activity was long sustained at Tonopah largely due to the amazing production ... More
![Water front, Toledo, O[hio] - Public domain image. Dry plate negative.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDAvMDEvMDEvd2F0ZXItZnJvbnQtdG9sZWRvLW9oaW8tOC0xMDI0LmpwZw%3D%3D/40/32/webp "Water front, Toledo, O[hio] - Public domain image. Dry plate negative.")
Water front, Toledo, O[hio] - Public domain image. Dry plate negative.
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, ...
The original caption for photograph #30 incorrectly identified the lake as Silver Lake. It has been corrected to Little Giant Basin. Significance: The Shenandoah-Dives Mill is an exceptional example of early t... More
Kennecott Copper Corporation, Company Store & Warehouse, On Copper Riv...
Significance: The Store and Warehouse building was built in 1917, along with several other additions to Kennecott Company Town. The concentration of functions in the new building reflected the continued growth ... More
Kennecott Copper Corporation, Concentration Mill, On Copper River & No...
Significance: The Concentration Mill was a dynamic, ever changing structure. Its form reflected the ever-increasing complexity of the ores mined at Kennecott. The building was first erected in 1908 as the low... More
Kennecott Copper Corporation, Concentration Mill, On Copper River & No...
Significance: The Concentration Mill was a dynamic, ever changing structure. Its form reflected the ever-increasing complexity of the ores mined at Kennecott. The building was first erected in 1908 as the low... More
Kennecott Copper Corporation, Concentration Mill, On Copper River & No...
Significance: The Concentration Mill was a dynamic, ever changing structure. Its form reflected the ever-increasing complexity of the ores mined at Kennecott. The building was first erected in 1908 as the low... More
Kennecott Copper Corporation, Concentration Mill, On Copper River & No...
Significance: The Concentration Mill was a dynamic, ever changing structure. Its form reflected the ever-increasing complexity of the ores mined at Kennecott. The building was first erected in 1908 as the low... More
Unloading ore at Conneaut, Ohio, Brown conveying hoists
Date based on Detroit, Catalogue J (1901). "P.B. & L.E." on open railroad car. Detroit Publishing Co. no. 012888. Gift; State Historical Society of Colorado; 1949.
Unloading ore and loading fuel, Lackawanna ore docks, Buffalo, N.Y
Date based on Detroit, Catalogue J (1901). "92" on negative. Detroit Publishing Co. no. 012929. Gift; State Historical Society of Colorado; 1949.
![[Str. landing at S.S. Ry. ore docks, Marquette, Mich.]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDAvMDEvMDEvc3RyLWxhbmRpbmctYXQtc3Mtcnktb3JlLWRvY2tzLW1hcnF1ZXR0ZS1taWNoLTEwMjQuanBn/40/31/webp "[Str. landing at S.S. Ry. ore docks, Marquette, Mich.]")
[Str. landing at S.S. Ry. ore docks, Marquette, Mich.]
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
Steam shovel, side view, Burt mine, Mesabi Range, Minn., U.S.A.
Stereograph showing side view of large steam with man operating the controls; shovel dumping iron ore into open railroad cars.
Steamers at the South Shore Ry. ore docks, Marquette, Mich
"G 2222" on negative. "James Watt" on ship. Detroit Publishing Co. no. 018247. Gift; State Historical Society of Colorado; 1949.
Sergei Prokudin Gorskiy: Razrabotka rudy na gori︠e︡ Blagodatʹ, photogr...
In album: Views in the Ural Mountains, survey of industrial area, Russian Empire, LOT 10335-A, no. 160. Credit line: Prokudin-Gorskiĭ photograph collection, Library of Congress, Prints and Photographs Division.... More
![[All coal picked clean of laminated coal]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MjIvMDEvMDEvYWxsLWNvYWwtcGlja2VkLWNsZWFuLW9mLWxhbWluYXRlZC1jb2FsLTEwMjQuanBn/40/29/webp "[All coal picked clean of laminated coal]")
[All coal picked clean of laminated coal]
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Pennsylvania R.R. ore docks, unloading iron ore from a lake freighter ...
12002-16. Transfer from U.S. Office of War Information, 1944. General information about the FSA/OWI Color Photographs is available at http://hdl.loc.gov/loc.pnp/pp.fsac Title from FSA or OWI agency caption. Add... More
Pennsylvania R.R. ore docks, unloading iron ore from a lake freighter ...
12002-16. Transfer from U.S. Office of War Information, 1944. General information about the FSA/OWI Color Photographs is available at http://hdl.loc.gov/loc.pnp/pp.fsac Title from FSA or OWI agency caption. Add... More
Pennsylvania R.R. ore docks, a "Hulett" unloader in operation, Clevela...
12002-16. Transfer from U.S. Office of War Information, 1944. General information about the FSA/OWI Color Photographs is available at http://hdl.loc.gov/loc.pnp/pp.fsac Title from FSA or OWI agency caption. Add... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Escanaba, Mich., ore docks - Glass negative photogrpah. Public domain.
Negatives form a two-part panorama. "Copyright 1898 by Detroit Photographic Co." on both negatives. "01968" on left negative; "1967" on right negative. Detroit Publishing Co. no. 01968. Detroit Publishing Co. p... More
Kennecott Copper Corporation, Leaching Plant, On Copper River & Northw...
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day... More
Silver King Mining Company, Ore Mill, Park City West, Park City, Summi...
Significance: At the beginning of the twentieth century the Silver King Coalition Mine in Park City, Utah, was both the largest producer of ore and ore-concentrates in the region and the largest dividend-payer ... More
Tintic Standard Reduction Mill, Warm Springs Mountain, Goshen, Utah Co...
Significance: The Tintic Standard Reduction Mill was the only use of the antiquated Augustin process in the United States during the early 1920s. The Augustin process was an acid-brine chlorodizing and leaching... More