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, 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
Carnegie Institute of Washington, Department of Terrestrial Magnetism,...
Significance: The Carnegie Institution of Washington, with funds provided by industrialist and philanthropist Andrew Carnegie, established the Department of Terrestrial Magnetism 9 DTM) in 1904 to survey and me... More
Carnegie Institute of Washington, Department of Terrestrial Magnetism,...
Significance: The Carnegie Institution of Washington, with funds provided by industrialist and philanthropist Andrew Carnegie, established the Department of Terrestrial Magnetism 9 DTM) in 1904 to survey and me... More
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 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
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 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
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
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, 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
Carnegie Institute of Washington, Department of Terrestrial Magnetism,...
Significance: The Carnegie Institution of Washington, with funds provided by industrialist and philanthropist Andrew Carnegie, established the Department of Terrestrial Magnetism 9 DTM) in 1904 to survey and me... More
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, Bab...
Survey number: HAER MN-28-A Public domain photograph of diesel or electric train engine, free to use, no copyright restrictions image - Picryl description
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 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
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
Silver Bay-Reserve Mining, Magnetic Concentration Plant, Fine Crusher ...
Survey number: HAER MN-28-D Public domain photograph of manufacturing workers, factory building, assembly line, free to use, no copyright restrictions image - Picryl description
Silver Bay-Reserve Mining, Magnetic Concentration Plant, Dump Car Buil...
Survey number: HAER MN-28-E Public domain photograph - historical image of Missouri, United States, free to use, no copyright restrictions image - Picryl description
Carnegie Institute of Washington, Department of Terrestrial Magnetism,...
Significance: The Carnegie Institution of Washington, with funds provided by industrialist and philanthropist Andrew Carnegie, established the Department of Terrestrial Magnetism 9 DTM) in 1904 to survey and me... More
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
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, Bab...
Survey number: HAER MN-28-A Public domain photograph of aircraft, free to use, no copyright restrictions image - Picryl description
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 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
Carnegie Institute of Washington, Department of Terrestrial Magnetism,...
Significance: The Carnegie Institution of Washington, with funds provided by industrialist and philanthropist Andrew Carnegie, established the Department of Terrestrial Magnetism 9 DTM) in 1904 to survey and me... More
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
Silver Bay-Reserve Mining, Magnetic Concentration Plant, Power House, ...
Survey number: HAER MN-28-B Public domain photograph of industrial building, landscape, architecture, free to use, no copyright restrictions image - Picryl description
Mesabi Iron Company, Magnetic Concentration Plant, Pelletizer Building...
Survey number: HAER MN-38-B Public domain photograph of industrial building, landscape, architecture, free to use, no copyright restrictions image - Picryl description
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, 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, 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, Fine Crusher ...
Survey number: HAER MN-28-D Public domain photograph of manufacturing workers, factory building, assembly line, free to use, no copyright restrictions image - Picryl description
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
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 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
Carnegie Institute of Washington, Department of Terrestrial Magnetism,...
Significance: The Carnegie Institution of Washington, with funds provided by industrialist and philanthropist Andrew Carnegie, established the Department of Terrestrial Magnetism 9 DTM) in 1904 to survey and me... More
Mesabi Iron Company, Magnetic Concentration Plant, Concentrator Buildi...
Survey number: HAER MN-38-D Public domain photograph of industrial building, landscape, architecture, free to use, no copyright restrictions image - Picryl description
Carnegie Institute of Washington, Department of Terrestrial Magnetism,...
Significance: The Carnegie Institution of Washington, with funds provided by industrialist and philanthropist Andrew Carnegie, established the Department of Terrestrial Magnetism 9 DTM) in 1904 to survey and me... More
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
Mesabi Iron Company, Magnetic Concentration Plant, Pelletizer Building...
Survey number: HAER MN-38-B Public domain photograph of industrial building, landscape, architecture, free to use, no copyright restrictions image - Picryl description
Silver Bay-Reserve Mining, Magnetic Concentration Plant, Dump Car Buil...
Survey number: HAER MN-28-E 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, Fine Crusher ...
Survey number: HAER MN-28-D Public domain photograph of theater building, free to use, no copyright restrictions image - Picryl description