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Portland Gold Mining mill at Victor. Teller County, Colorado. 1917
Puzzle Mine and landslip mass in foreground. CHC Hill in background. Dolores County, Colorado. 1900.
Quarry P.C. Company of Colorado, Portland. Fremont County, Colorado. 1903
Red Mountain and mine from road to Barstow Mine. Red Mountain, Ouray County, Colorado. 1900.
Robinson, Guston, and Yankee Girl mines. Ouray County, Colorado. 1900
  Rollins Coal Mine north of Delta. Delta County, Colorado. 1907.jpg  
Service coal mine at foot of Book Cliffs. Northeast of Grand Junction. Mesa County, Colorado. 1927.
Shaft house and works Wolftone mine, Leadville. Lake County, Colorado. 1908
Shaft house and works, Moyer mine, Leadville District. Lake County, Colorado. 1908
Smuggler Mill in foreground near Telluride. San Miguel County, Colorado. ca. 1912.
South Canyon Mines, in South Canon. Garfield County, Colorado. 1911.

Rollins Coal Mine north of Delta. Delta County, Colorado. 1907 Download Original Image
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