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Open pit mines
The Art of Open Pit Mining 1917-1975
The concept of surface mining using steam shovels to dig blasted rock and load it into railroad cars had been used in the iron mines of Michigan and for copper at Bingham Canyon..... pdf download
Image of the Holbrook extension of the Lavender Pit with features marked.
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Image of the Lavender Pit mine complex - maintenance shops and offices at left; the open pit mine center; concentrator right. February 1957
Image of the Sacramento pit in 1925, including the terminal of the Shattuck tramway, Lowell and Warren.
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Lavender pit mine complex 1963 panorama
Image of the Lavender Pit mine complex - maintenance shops and offices at left; the open pit mine center; concentrator right. 1963
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