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View westward along the Abrigo fault. The ravine in the foreground is eroded along the fault. On the right are Escabrosa and Martin limestones; on the left Naco limestone, The distant saddle is also determined by the fault which has there brought Bolsa quartzite on the right against Naco limestone on the left. Cochise County, Arizona. November 25, 1902. Plate 17-B in U.S. Geological Survey. Professional paper 21. 1904.
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Fault between Naco limestone, on left, and Escabrosa limestone on right, crest of Ecabrosa Ridge west of Bisbee. The view is north, the canyon on the right being that extending from Bisbee up to Mule Pass. Cochise County, Arizona. November 28, 1902. Plate 20-A in U.S. Geological Survey. Professional paper 21. 1904.
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General view eastward from the head of Uncle Sam Gulch over Sacramento Hill to the mouth of Mule Gulch: on the left are Queen Hill and flues of the Copper Queen smelter. In the right middle ground is the Spray shaft and just beyond it Sacramento Hill. Still farther to the right is the Irish Mag shaft. In the distance are the hills carved from the beds of the Bisbee group. Cochise County, Arizona. November 28, 1902. Plate 21-B in U.S. Geological Survey. Professional paper 21. 1904.
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Folded and faulted Escabrosa and Naco limestones, as seen from the crest of Escabrosa Ridge, looking west across the head of Escacado Canyon. Cochise County, Arizona. November 28, 1902. Plate 19-B in U.S. Geological Survey. Professional paper 21. 1904.
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The Glance overthrust fault from the south, the line of the fault is accentuated by a growth of bushes. The nearly horizontal beds above the fault plane are Naco limestone. The easterly dipping beds below the fault plane are Mural limestone. Cochise County, Arizona. November 26, 1902. Plate 23-A in U.S. Geological Survey. Professional paper 21. 1904.
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Detail of faulted structure on the east side of Escacado Canyon; the cliffs are formed of Escabrosa limestone overlain by Naco limestones. The slope below is underlain by Martin and Abrigo limestones, behind which the Escabrosa has been dropped by faults along the base of the cliffs. In the foreground are knolls of Escabrosa limestone, which has been faulted down against the Abrigo. Cochise County, Arizona. November 28, 1902. Plate 19-A in U.S. Geological Survey. Professional paper 21. 1904, figure 8 in U.S. Geological Survey. Folio 112. 1904.
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Cliff of Escabrosa limestone northwest of Don Luis, structure is complicated by faulting, some Naco limestone occurs on crest of ridge in background. Martin and Abrigo limestone underlie slopes in foreground. Cochise County, Arizona. November 28, 1902. Plate 8-A in U.S. Geological Survey. Professional paper 21. 1904.
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Glance conglomerate as exposed 1 mile northwest of Gold Hill. The angular pebbles or fragments are mostly of schist, and range from a fraction of an inch to 3 feet in length. Cochise County, Arizona. November 26, 1902. Plate 15-B in U.S. Geological Survey. Professional paper 21. 1904.
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Gold Hill from the south, showing overthrust fault. Cochise County, Arizona. November 26, 1902. Plate 22-B in U.S. Geological Survey. Professional paper 21. 1904.
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Cherty banding of Abrigo limestone, on top of Black Ridge. Cochise County, Arizona. November 28, 1902. Plate 6-B in U.S. Geological Survey. Professional paper 21. 1904, figure 5 in U.S. Geological Survey Folio 112. 1904.
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Escabrosa limestone conformably overlain by Naco limestone, 1 mile north of Don Luis, the hill on the left is formed of Escabrosa limestone. The base of the Naco limestone outcrops about halfway up the slope on the right. Cochise County, Arizona. November 29, 1902. Plate 9-A in U.S. Geological Survey. Professional paper 21. 1904, figure 3 in U.S. Geological Survey Folio 112. 1904, figure 3 in U.S. Geological Survey Folio 112. 1904.
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Probable volcanic neck 2.5 miles northeast of Naco junction. Cochise County, Arizona. November 25, 1902. Plate 18-B in U.S. Geological Survey. Professional paper 21. 1904.
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Porphyry dikes, accompanied by reversed faults, cutting Paleozoic limestones, southwest slope of Escabrosa Ridge, north of Moore Gulch, the Escabrosa limestone forms the cliffs in the background, while the Martin limestone underlies the steep slope below the thick basal bed of the Escabrosa. The Abrigo limestone occupies the fore and middle ground. Cochise County, Arizona. 1902. Plate 17-A in U.S. Geological Survey. Professional paper 21. 1904.
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Irish Mag and Spray shafts, from Sacramento Hill, the Spray is on the right. Cochise County, Arizona. December 19, 1902. Plate 24-B in U.S. Geological Survey. Professional paper 21. 1904.
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View southward from Mule Gulch through Black Gap, showing basin floored with Glance conglomerate. The hills on either side of the gap are formed from Paleozoic limestones. Beyond them stretches the Espinal Plain to the foot of the San Jose Mountains. whose dominant peak appears on the sky line to the right of the gap. Cochise County, Arizona. December 1, 1902. Plate 15-A in U.S. Geological Survey. Professional paper 21. 1904.
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Bisbee from Sacramento Hill, Holbrook shaft in foreground, Czar shaft in middle. Cochise County, Arizona. December 19, 1902. Plate 5-B in U.S. Geological Survey. Professional paper 21. 190, figure 2 in U.S. Geological Survey Folio 112. 1904.
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Hills carved from Cretaceous beds east of Bisbee. View is northward across Mule Gulch. The prominent white band is the upper member of the Mural limestone, forming the top of Mural Hill on the left and showing the dislocation due to the Mexican Canyon fault. Cochise County, Arizona. December 1, 1902. Plate 9-B in U.S. Geological Survey. Professional paper 21. 1904, figure 7 in U.S. Geological Survey Folio 112. 1904.
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San Pedro valley and Huachuca Range from the Mule Mountains. Cochise County, Arizona. November 25, 1902. Plate 5-A in U.S. Geological Survey. Professional paper 21. 1904.
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Form a panoramic view northeast from ridge east of Bisbee, showing the topography associated with the Bisbee group. On the right is Mexican Canyon (photo 414) on the left is Dixie Canyon (photo 415). In the foreground is the Mural limestone, which appears also in the distant hills to the left, and as the result of faulting low down in Mexican Canyon. Overlying the Mural limestone is the Cintura formation. In the distance is the broad Sulphur Spring Valley, bounded on the east by the Chiricahua Range. Cochise County, Arizona. December 1, 1902. Plate 13, photo 414 is right portion; photo 415 the left, in U.S. Geological Survey. Professional paper 21. 1904,
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Glance conglomerate resting upon irregular eroded Naco limestone 1 mile northeast of Black Gap. The conglomerate is thickest at the left side of the picture and thinnest in the saddle on the right. The summit of Gold Hill is visible through the saddle. Cochise County, Arizona. December 1, 1902. Plate 14-B in U.S. Geological Survey. Professional paper 21. 1904, figure 9 in U.S. Geological Survey Folio 112. 1904.