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Housing for migratory workers in cotton, five miles north of Corcoran, California. The famous strikers' concentration camp in 1933 was at Corcoran camp

Housing for migratory workers in cotton, five miles north of Corcoran,...

Public domain photograph of rural California, dust bowl refugees, 1930s-1940s, no copyright restrictions image - Picryl description

Ladling syrup from boiling vat to concentration vat at syrup mill near New Iberia, Louisiana

Ladling syrup from boiling vat to concentration vat at syrup mill near...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Concentration plant for Danube mine near Bovey, Minnesota

Concentration plant for Danube mine near Bovey, Minnesota

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

Ben Bow chromite mill, Stillwater County, Montana. Tables on which concentration of chrome ore is completed by a vibratory process

Ben Bow chromite mill, Stillwater County, Montana. Tables on which con...

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

Mesabi Iron Company, Magnetic Concentration Plant, Pelletizer Building, Babbitt, St. Louis County, MN

Mesabi Iron Company, Magnetic Concentration Plant, Pelletizer Building...

Survey number: HAER MN-38-B Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Conveyor, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Conveyor, Bab...

Survey number: HAER MN-28-A Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Kennecott Copper Corporation, Concentration Mill, On Copper River & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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

Cornbread. Food for flood refugees at the Forrest City concentration camp. Arkansas

Cornbread. Food for flood refugees at the Forrest City concentration c...

Public domain photograph - United States during the 1930s and 1940s, Farm Security Administration, New Deal, free to use, no copyright restrictions image - Picryl description

Railroad engineer who brings ore cars up from open pit mine to concentration plant near Bovey, Minnesota

Railroad engineer who brings ore cars up from open pit mine to concent...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Operating releases which control chutes in loading railroad cars with ore at concentration plant for Danube mine near Bovey, Minnesota

Operating releases which control chutes in loading railroad cars with ...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Ben Bow chromite mill, Stillwater County, Montana. Mill in which chrome ore mixed with water is finely ground before final concentration

Ben Bow chromite mill, Stillwater County, Montana. Mill in which chrom...

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Fine Crusher Building, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Fine Crusher ...

Survey number: HAER MN-28-D Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Conveyor, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Conveyor, Bab...

Survey number: HAER MN-28-A Public domain photograph of aircraft, free to use, no copyright restrictions image - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Fine Crusher Silo, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Fine Crusher ...

Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.

Kennecott Copper Corporation, Concentration Mill, On Copper River & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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

Now let me think. Washington, D.C. Jan. 15. Francis Ward Paine, Senior Partner in Paine, Weber and Company, Boston and New York brokers in a moment of concentration before answering one of the questions that was fired at him by Sen. Wheeler at the railroad hearing at the Capitol today

Now let me think. Washington, D.C. Jan. 15. Francis Ward Paine, Senior...

A black and white photo of a man sitting at a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Kern County, California. Mill of the Tungsten Chief Mine. Ball mills which grind the tungsten ore into particles suitable for the tabling concentration

Kern County, California. Mill of the Tungsten Chief Mine. Ball mills w...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

[Austria, May 1945 - Hungarian Jews after removal from Nazi concentration camps to facilities provided by US Army 121st Evacuation Hosp.: men lying on straw inside building (#206817)]

[Austria, May 1945 - Hungarian Jews after removal from Nazi concentrat...

Photo by USASC. This record contains unverified, old data from caption card. Caption card tracings: Americans in Austria; World War, 1939-1945 Concentra. c.; Hungarian Jews; Austria; Shelf.

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Building, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Bui...

Survey number: HAER MN-28-G Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Dump Car Building, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Dump Car Buil...

Survey number: HAER MN-28-E Public domain photograph of diesel or electric train engine, free to use, no copyright restrictions image - Picryl description

Kennecott Copper Corporation, Concentration Mill, On Copper River & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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

A black and white photo of a man in a hat, Arkansas. Farmers during Great Depression.

A black and white photo of a man in a hat, Arkansas. Farmers during Gr...

Public domain photograph - United States during the 1930s and 1940s, Farm Security Administration, New Deal, free to use, no copyright restrictions image - Picryl description

A black and white photo of a man leaning against a brick wall, Arkansas. Farmers during Great Depression.

A black and white photo of a man leaning against a brick wall, Arkansa...

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

A black and white photo of a crowd of people, Arkansas. Farmers during Great Depression.

A black and white photo of a crowd of people, Arkansas. Farmers during...

Picryl description: Public domain historical photograph of 1930s America during the Great Depression, free to use, no copyright restrictions image.

Mesabi Iron Company, Magnetic Concentration Plant, Crusher Building, Babbitt, St. Louis County, MN

Mesabi Iron Company, Magnetic Concentration Plant, Crusher Building, B...

Survey number: HAER MN-38-A Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Building, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Bui...

Survey number: HAER MN-28-G Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 West Area, Richland, Benton County, WA

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 Wes...

Significance: Building 233-S, the Plutonium Concentration Facility, was constructed as part of the Reduction-Oxidation (REDOX) Canyon and Service Facility's Phase II Capacity Increase on the Hanford Site. Whil... More

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Fine Crusher Silo, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Fine Crusher ...

Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.

Kennecott Copper Corporation, Concentration Mill, On Copper River & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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

Migrant camp, Weslaco, Texas. Local employment men say that there was no need for migrant labor to handle the citrus and vegetable crops in the valley, the local supply of labor being ample for this purpose. Most of the local labor is Mexican and the labor contractors favor Mexican labor over white labor, partly because the Mexican will work much cheaper than whites. One white woman who was a permanent resident (her husband was on WPA (Works Progress Administration/Work  Projects Administration) said that the white people who lived in the valley, had no trouble with the Mexicans. The Mexicans were good neighbors, she said, always willing to share what they had. She said the white migrants who came into the valley and resented and misunderstood the Mexicans caused the trouble between the two races. Some towns in this section permit camping only in trailers. The charge for camping in tents is about fifty cents per week, including water, which in some cases must be carried four city blocks. Privies are tin, very bad condition. Garbage is collected only once a week, with large dumps of decaying fruits and vegetables scattered among the camps. Some of the white migrants in this camp were very suspicious of governmental activity, due to the use by south Texas newspapers of the term "concentration camps" referring to FSA (Farm Security Administration) camps

Migrant camp, Weslaco, Texas. Local employment men say that there was ...

Picryl description: Public domain photograph of a refugee camp, migrant workers, 1930s, Great Depression, Dust Bowl refugees, poverty, economic conditions, free to use, no copyright restrictions.

Concentration plant for Danube Mine near Bovey, Minnesota

Concentration plant for Danube Mine near Bovey, Minnesota

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Concentration or washing plant for Danube Mine near Bovey, Minnesota

Concentration or washing plant for Danube Mine near Bovey, Minnesota

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

Mesabi Iron Company, Magnetic Concentration Plant, Pelletizer Building, Babbitt, St. Louis County, MN

Mesabi Iron Company, Magnetic Concentration Plant, Pelletizer Building...

Survey number: HAER MN-38-B Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Mesabi Iron Company, Magnetic Concentration Plant, Crusher Building, Babbitt, St. Louis County, MN

Mesabi Iron Company, Magnetic Concentration Plant, Crusher Building, B...

Survey number: HAER MN-38-A Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 West Area, Richland, Benton County, WA

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 Wes...

Significance: Building 233-S, the Plutonium Concentration Facility, was constructed as part of the Reduction-Oxidation (REDOX) Canyon and Service Facility's Phase II Capacity Increase on the Hanford Site. Whil... More

Mesabi Iron Company Magnetic Concentration Plant, Boiler House, Babbitt, St. Louis County, MN

Mesabi Iron Company Magnetic Concentration Plant, Boiler House, Babbit...

Survey number: HAER MN-38-C Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Kennecott Copper Corporation, Concentration Mill, On Copper River & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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

Concentrated wealth on increase. Washington D.C. Concentration of wealth in the control of a few corporations has increased since 1931. Dr. Charles A. Beard, (right) told the Senate Judiciary subcommittee today. Dr. Beard, noted political scientist and economist, was testifying in defense of the O'Mahoney Corporation Licensing Bill, which, if passed, will require corporations dealing in interstate commerce to comply with specified standards to aqcuire a federal license. Senator Joseph O'Mahoney, author of the bill and Chairman of the Committee, is on the left

Concentrated wealth on increase. Washington D.C. Concentration of weal...

Two men in suits standing next to each other. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

A black and white photo of a crowd of people, Arkansas. Farmers during Great Depression.

A black and white photo of a crowd of people, Arkansas. Farmers during...

Picryl description: Public domain historical photograph of 1930s America during the Great Depression, free to use, no copyright restrictions image.

Taking sample of iron ore before it leaves the concentration plant. Bovey, Minnesota

Taking sample of iron ore before it leaves the concentration plant. Bo...

Picryl description: Public domain image of a mine, mining, free to use, no copyright restrictions.

Mesabi Iron Company, Magnetic Concentration Plant, Crusher Building, Babbitt, St. Louis County, MN

Mesabi Iron Company, Magnetic Concentration Plant, Crusher Building, B...

Survey number: HAER MN-38-A Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Building, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Bui...

Survey number: HAER MN-28-G Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 West Area, Richland, Benton County, WA

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 Wes...

Significance: Building 233-S, the Plutonium Concentration Facility, was constructed as part of the Reduction-Oxidation (REDOX) Canyon and Service Facility's Phase II Capacity Increase on the Hanford Site. Whil... More

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 West Area, Richland, Benton County, WA

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 Wes...

Significance: Building 233-S, the Plutonium Concentration Facility, was constructed as part of the Reduction-Oxidation (REDOX) Canyon and Service Facility's Phase II Capacity Increase on the Hanford Site. Whil... More

Mesabi Iron Company Magnetic Concentration Plant, Boiler House, Babbitt, St. Louis County, MN

Mesabi Iron Company Magnetic Concentration Plant, Boiler House, Babbit...

Survey number: HAER MN-38-C Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Babbitt, St. ...

Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.

Mesabi Iron Company, Magnetic Concentration Plant, Babbitt, St. Louis County, MN

Mesabi Iron Company, Magnetic Concentration Plant, Babbitt, St. Louis ...

Significance: This plant began the development of commercial scale taconite processing in Minnesota. This plant used for the first time the magnetic concentration process to convert low-grade taconite into bla... More

Kennecott Copper Corporation, Concentration Mill, On Copper River & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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

A black and white photo of a man holding a baseball bat, Great Depression. FSA/OWI Photograph

A black and white photo of a man holding a baseball bat, Great Depress...

Public domain photograph - United States during the 1930s and 1940s, Farm Security Administration, New Deal, free to use, no copyright restrictions image - Picryl description

Grini, Norway. A German concentration camp

Grini, Norway. A German concentration camp

Public domain photograph of procession, parade in Norway, free to use, no copyright restrictions image - Picryl description

Washing ore in concentration plant for Danube mine. Bovey, Minnesota

Washing ore in concentration plant for Danube mine. Bovey, Minnesota

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Loading car with washed ore at concentration plant near Bovey, Minnesota

Loading car with washed ore at concentration plant near Bovey, Minneso...

Public domain photograph of 1930s-1940s train station, train car, no copyright restrictions image - Picryl description

Washed ore being loaded into seventy ton cars for shipment to Duluth-Superior ore docks. Concentration plant at Bovey, Minnesota

Washed ore being loaded into seventy ton cars for shipment to Duluth-S...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Anaconda smelter, Montana. Anaconda Copper Mining Company. Battery of Hardinge ballmills; in these ballmills the ore is ground to the consistency of flour which is a requisite condition for the floatation process of concentration

Anaconda smelter, Montana. Anaconda Copper Mining Company. Battery of ...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Fine Crusher Building, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Fine Crusher ...

Survey number: HAER MN-28-D Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 West Area, Richland, Benton County, WA

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 Wes...

Significance: Building 233-S, the Plutonium Concentration Facility, was constructed as part of the Reduction-Oxidation (REDOX) Canyon and Service Facility's Phase II Capacity Increase on the Hanford Site. Whil... More

Kennecott Copper Corporation, Concentration Mill, On Copper River & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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 & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK

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

Workman weighing sample of gold ore and cyanide solution to determine if proper concentration of liquid is being maintained. Mogollon, New Mexico

Workman weighing sample of gold ore and cyanide solution to determine ...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

At concentration plant iron ore is first dumped onto these shams which help separate rock from ore. Near Bovey, Minnesota

At concentration plant iron ore is first dumped onto these shams which...

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

A Ukrainian girl prepares a meal for her family on a make shift stove in a concentration camp at Salzburg, Austria / Signal Corps photo.
[Austria, May 1945 - Hungarian Jews after removal from Nazi concentration camps to facilities provided by US Army 121st Evacuation Hosp.: men lying on cots outside building (#206816)]

[Austria, May 1945 - Hungarian Jews after removal from Nazi concentrat...

Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Building, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Bui...

Survey number: HAER MN-28-G Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Building, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Peletizer Bui...

Survey number: HAER MN-28-G Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 West Area, Richland, Benton County, WA

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 Wes...

Significance: Building 233-S, the Plutonium Concentration Facility, was constructed as part of the Reduction-Oxidation (REDOX) Canyon and Service Facility's Phase II Capacity Increase on the Hanford Site. Whil... More

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 West Area, Richland, Benton County, WA

Reduction-Oxidation Complex, Plutonium Concentration Facility, 200 Wes...

Significance: Building 233-S, the Plutonium Concentration Facility, was constructed as part of the Reduction-Oxidation (REDOX) Canyon and Service Facility's Phase II Capacity Increase on the Hanford Site. Whil... More

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Filtration Plant, Babbitt, St. Louis County, MN

Silver Bay-Reserve Mining, Magnetic Concentration Plant, Filtration Pl...

Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description

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