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Cropping of zone at "Discovery," between quartzite walls, looking northeast. Summit County, Utah. Circa 1904. Plate 32-A in U.S. Geological Survey. Professional paper 77. 1912.
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Form a panorama. Park City monocline shows monoclinal structure of sedimentary formations. Weber quartzite in foreground, Park City formation capping first spur. Thaynes formation on the second and third cuestas, and heavy Triassic sandstone forming the prominent cuesta in the right background, all dipping northwest. Park City in middle ground; Ontario mill in left foreground, and Silver King mine and Crescent Ridge in left background, looking southwest. Summit County, Utah. Circa 1904. Plate 4-A in U.S. Geological Survey. Professional paper 77. 1912.
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(This photograph is on the website created before FY-04!!) Tongues of diorite porphyry extending upward into calcareous beds, metamorphosing, shattering and mineralizing them, on 1,100 foot level, McCormick crosscut Silver King mine, looking southeast. Summit County, Utah. Circa 1904. Plate 23-B in U.S. Geological Survey. Professional paper 77. 1912.
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(This photograph is on the website created before FY-04!!) Bed of rich banded carbonates ore between clean siliceous walls; on 750-foot level north, Silver King mine, looking east. Summit County, Utah. Circa 1904. Plate 34-A in U.S. Geological Survey. Professional paper 77. 1912.
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(This photo is on the website created prior to FY 04!) Massachusetts fault, crossing from Massachusetts shaft, at the left, to the right; ledges along the lower right hand side of the gulch are Weber quartzite north of fault. Alliance tunnel in right foreground, Daly-Judge tunnel at left; Crescent Ridge in left background, looking southwest along Walker and Webster Gulch. Summit County, Utah. Circa 1904. Plate 17-B in U.S. Geological Survey. Professional paper 77. 1912.
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(This photograph is on the website created prior to FY-04!!) Lateral moraine ponding Lady Morgan lakes, looking northwest. Daly-Judge office and bunkhouse at left. Summit County, Utah. Circa 1904. Plate 9-B in U.S. Geological Survey. Professional paper 77. 1912.
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Bedded structure in andesitic flows and breccias, north of mouth of Ontario drain tunnel, looking north. Summit County, Utah. Circa 1904. Plate 10-A in U.S. Geological Survey. Professional paper 77. 1912.
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Ponding by ground and frontal moraines at east end of Bonanza Flat, looking southwest toward main divide of Wasatch Range. In background Timpanogos Peak and at left Provo Peaks. Wasatch County, Utah. Circa 1904. Plate 9-A in U.S. Geological Survey. Professional paper 77. 1912.
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Form a panorama. Clayton Peak diorite stock, diorite encircled by metamorphosed sediments lying to the right of Brighton Gap in right foreground and to left of the gap at left. Glacial topography (cirques, roche moutonees and moraines) developed on diorite. Summit County, Utah. Circa 1904. Plate 4-B in U.S. Geological Survey. Professional paper 77. 1912.
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Crescent fault, limestone of Thaynes formation at left, truncated on the north and offset to the west, continuing northward in Crescent Ridge at right background. Looking southwest across Empire Canyon and Walker and Webster Gulch. Summit County, Utah. Circa 1904. Plate 17-A in U.S. Geological Survey. Professional paper 77. 1912.
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Glacial striae on roche moutonees of diorite, eastern slope of Clayton Peak, in upper Bonanza Flat. Wasatch County, Utah. Circa 1904. Plate 8-B in U.S. Geological Survey. Professional paper 77. 1912.
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Daly West mine: office, shaft, and mill in middle ground; Daly-Judge shaft in background at center, and Diamond-Nimrod shaft at right, looking southwest. Summit County, Utah. 1902. Plate 41-B in U.S. Geological Survey Professional Paper 77.
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(This photograph is on the website created before FY-04!!) Ores in Silver King mine. beds of rich ore, carrying lead and copper, in Weber quartzite adjacent to fissure, on 1,200-foot level, looking east. Summit County, Utah. Circa 1904. Plate 44-A in U.S. Geological Survey. Professional paper 77. 1912.
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Mines in upper Ontario Canyon, Ontario mine in middle ground, shaft No. 2 at left, shaft No. 3 at right, Wabash shaft in center. In background Naildriver shaft at right, New York shaft at left, looking southeast. Summit County, Utah. Circa 1904. Plate 38-B in U.S. Geological Survey. Professional paper 77. 1912.
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Stope on 4-foot bed of rich ore conformable with sedimentary beds as walls; C stope above C drift, Daly West mine, looking southwest. Summit County, Utah. 1902. Plate 33-A in U.S. Geological Survey Professional paper 77.
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Basal contact of andesite with sandstone of the Thaynes formation, exposure along wall of tunnel northeast of Park City district, water worn pebbles enclosed at base of tuffaceous material. Summit County, Utah. Circa 1904. Plate 10-B in U.S. Geological Survey. Professional paper 77. 1912.
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Ontario fracture zone on 1,700-foot level, between well defined walls of limestone and porphyry, looking southwest. Summit County, Utah. Circa 1904. Plate 32-B in U.S. Geological Survey. Professional paper 77. 1912.
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Form a panorama. Park City monocline shows monoclinal structure of sedimentary formations. Weber quartzite in foreground, Park City formation capping first spur. Thaynes formation on the second and third cuestas, and heavy Triassic sandstone forming the prominent cuesta in the right background, all dipping northwest. Park City in middle ground; Ontario mill in left foreground, and Silver King mine and Crescent Ridge in left background, looking southwest. Summit County, Utah. Circa 1904. Plate 4-A in U.S. Geological Survey. Professional paper 77. 1912.
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(This photograph is on the website created before FY-04!!) Barren zone of strong fracturing in quartzite in main Ontario zone, 1,500-foot level Ontario mine, looking northeast. Summit County, Utah. Circa 1904. Plate 30-B in U.S. Geological Survey. Professional paper 77. 1912.
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Fault on surface, immediately east of Hawkeye shaft, between fractured massive limestone in hanging wall and brecciated Weber quartzite and limestone underneath, looking west. Wasatch County, Utah. Circa 1904. Plate 19-B in U.S. Geological Survey. Professional paper 77. 1912.