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Kirtland shale has overlain by Wasatch formation on south side of San Juan River, opposite Farmington, San Juan County, New Mexico. Circa 1915. Plate 66-A in U.S. Geological Survey. Professional paper 98. 1917.
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Pictured cliffs sandstone overlying shale on north side of Coal Creek, 3 miles from its mouth; looking westward. San Juan County, New Mexico. Circa 1915. Plate 67-A in U.S. Geological Survey. Professional paper 98. 1917.
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View eastward from divide between Ojo Alamo and Barrel Spring arroyos, Kirtland shale in foreground. Conical butte capped with lower part of Ojo Alamo sandstone. Butte at left consists of Kirtland shale at base, overlain by conglomeratic sandstone of Ojo Alamo, and that in turn by the middle or shale member of the same formation, with pebbles from the disintegrated upper conglomeratic member scattered over the top. San Juan County, New Mexico. Circa 1915. Plate 71-A in U.S. Geological Survey. Professional paper 98. 1917.
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Ojo Alamo sandstone at Ojo Alamo Store, Puerco formation overlying Ojo Alamo sandstone is shown in the distance; looking northward. San Juan County, New Mexico. Circa 1915. Plate 68-B in U.S. Geological Survey. Professional paper 98. 1917.
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The desert plain viewed northwestward across the valley of Chaco River, south of Hunter Wash. Chaco River and other arroyos are in trenched from 75 to 200 feet in this plain, which slopes westward 25 feet to the mile. The Great Hogback is seen in the distance; Elevation above sea level at plane table 5,680 feet. San Juan County, New Mexico. Circa 1915. Plate 66-C in U.S. Geological Survey. Professional paper 98. 1917.