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Title: Description of the Two Mining Processes
Type: Book
Date: 1930
Source: George R. Bailey
Description: This description comes from a book called The Red Mesabi, a novel that dealt with the Mesabi Iron Range.
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Title: Comparison of Costs
Type: Data
Date: 1931
Source: Minnesota Historical Society
Description: This table presents data on the costs of mining in open pit and underground mines.
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Title: Chart of an Underground Mine
Type: Diagram
Date: 1897
Source: Minnesota Historical Society
Description: This diagram shows a cross section of an underground mine using a process known as milling.
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Title: Photographs of the Underground Mining Process
Type: Photograph
Date: 1906 & 1935
Source: Minnesota Historical Society
Description: Three photographs showing workers in an underground mine.
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Title: Photograph of a Steam Shovel
Type: Photograph
Date: 1897
Source: Minnesota Historical Society
Description: This photo was found in a book called Methods of Iron Mining.
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Title: Loading Ore Onto a Train
Type: Photograph
Date: 1899
Source: Minnesota Historical Society
Description: This photograph shows a steamshovel loading ore into train cars.
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