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Gypsite deposit 9 feet thick on brow of hill, 1.25 miles southwest of Palmdale. Los Angeles County, California. 1906. Plate 3-B in U.S. Geological Survey. Bulletin 413. 1910.
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Sheeted serpentine containing thin veins of magnesite, near Deer creek, Tulare County, California. 1905. Plate 8-B in U.S. Geological Survey. Bulletin 355. 1908.
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Northern Hill at Willamette Pulp and Paper company's magnesite near Porterville, looking nearly north, nearly vertical vein (near or at the smaller mine adit). The lower line ascending toward the right is a tramway; the upper one is a wagon road. Tulare County, California. 1905. Plate 10-A and B printed as a panorama in U.S. Geological Survey. Bulletin 355. 1908.
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Crushed magnesite vein, 2 feet wide, near furnace 4 miles northeast of Porterville Tulare County, California. 1905. Plate 9-B in U.S. Geological Survey. Bulletin 355. 1908.
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Entrance to lower tunnel on Sonoma Magnesite company's claim near Cazadero. Sonoma County, California. 1905. Plate 5-B in U.S. Geological Survey. Bulletin 355. 1908.
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Crystallized ferberite from the Georgia A. Mine, Nederland; coated with ammonium chloride. X 10. Boulder County, Colorado. 1910. Plate 8-B in U.S. Geological Survey. Bulletin 583. 1914.
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Prospect tunnel of the Utarado Mining Company 2 miles northwest of Ouray. Uintah County, Utah. May 22, 1917.
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Open cut on the "Copeland property" of the Primos Exploration Company, South Boulder Creek, 1 1/2 miles north of Boulder looking north. Boulder County, Colorado. March 6, 1917.
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Gypsum interbedded with clay shales 1.25 miles southwest of Palmdale. Los Angeles County, California. 1906. Plate 4-B in U.S. Geological Survey. Bulletin 413.
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Lowest workings. Workings of the Mojave Boulder Tungsten Mining Company on its Good Friday claim in the northeast side of the junction between North Boulder and Middle Boulder Creeks, just below Boulder Falls, 8 miles west of Boulder, Boulder County, Colorado. 1917.
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Weathered surfaces of magnesite from locality northeast of Porterville. Tulare County, California. 1905. Plate 3-C in U.S. Geological Survey. Bulletin 355. 1908.
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Panorama of the Wolf Tongue Mining Company, the Gale mine, 2 1/2 miles north of Nederland. Boulder County, Colorado. February 27, 1917.
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Westward from Idaho Bar down Little Minook creek, showing portion of high bench and intermediate bench. Rampart district, Yukon region, Alaska. August 29, 1904. Plate 4-A in U.S. Geological Survey. Bulletin 280. 1906.
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Panorama with photo 698c. Looking north to northwest. Dumps of the Golden Cycle Mine, with Vindicator Mine, beyond them, and adjoining properties on the west.Teller County, Colorado. 1917.
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Slimes from the Independence mill and Portland Gold Mining Company's mill in gulch below Battle Mountain in the forth fork of Wilson Creek. Battle Mountain with the Portland Gold Mine is in the extreme background. The new mill of the Portland Gold Mining Co. is shown in the middle just behind the tailings dump. Cripple Creek mining district. Teller County, Colorado. March 21, 1917.
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Amphibolite dike cutting through flat vein of magnesite, 4 miles northeast of Porterville, small magnesite vein have formed in the amphibolite. Tulare County, California. 1905. Plate 9-A in U.S. Geological Survey. Bulletin 355. 1908.
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The Oil Bubble in the Lost Hills south of Tulare Lake, a mound of gypsum, made by the evaporation of water seeping from the rocks below. Kern County, California. 1906. Plate 2-A in U.S. Geological Survey. Bulletin 413. 1910.
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Panorama with photo 699a. Looking west from Battle Mountain, Victor. Dump from the Portland Gold Mining Company's mill on the right. Bull Hill in middle foreground. Teller County, Colorado. March 20, 1917.
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Shafthouse of the Denver-Boulder Tungsten Production and Development Company. Max Boehmer claim, 1 mile northeast of Sunshine, from the northwest. Boulder County, Colorado. February 24, 1917.


map background search result map search result map Mesa Verde National Park, Colorado. Cliff Palace.  1921. Mesa Verde National Park, Colorado. Cliff Palace.  1921.