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Production. Copper. Interior of large ball mill showing the iron balls which grind the ore to a fine size for subsequent treatment by flotation at one of the mills of the Utah Copper Company in Magna and Arthur in Utah
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Production. Copper. Interior of large ball mill showing the iron balls which grind the ore to a fine size for subsequent treatment by flotation at one of the mills of the Utah Copper Company in Magna and Arthur in Utah

United States. Office Of War Information, Feininger, Andreas · 1940-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Subjects
nitrate negativesunited statesutahsalt lake county
Credit lineProduction. Copper. Interior of large ball mill showing the iron balls which grind the ore to a fine size for subsequent treatment by flotation at one of the mills of the Utah Copper Company in Magna . 1940-01-01. United States. Office Of War Information, Feininger, Andreas. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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