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Death Valley National Park, California. Noonday Dolomite, showing structures of Scolithus tubes at the east foot of the mountain at the spur south of Galena Canyon. Circa 1960. Figure 9, U.S. Geological Survey Professional paper 494-A.
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The Factory Butte Coal Mine, mining an 8-foot bed of coal, has a sandstone roof properly supported here with timbers. Wayne County, Utah. 1935.
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Death Valley National Park, California. Dowels set on terracettes showed virtually no movement in several years. The terracettes seem to be stable in the present climate. They probably formed at a time when the climate was wetter, as it must have been at the time of the Holocene lake on the floor of Death Valley. Circa 1960.
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Death Valley National Park, California. Bioclastic bed with fragments of trilobites and brachiopods from shale unit at the base of the Nopah Formation. Circa 1960. Figure 23, U.S. Geological Survey Professional paper 494-A.
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Death Valley National Park, California. Amphipora(?) beds are abundant in the middle of the Lost Burro Formation. Circa 1960. Figure 30 (lower photo), U.S. Geological Survey Professional paper 494-A.
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View up South Creek from north side of South Creek Ridges laccolith. South Summit Ridge of Mount Ellen on skyline. Garfield County, Utah. June, 1937.
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Panorama with Image 583. View east across Copper Basin and Copper Ridges from Barton Peak. The Copper Ridge is a laccolith extending eastward from the Bromide intrusion. Garfield County, Utah. June, 1937.
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The Copper Ridges laccolith forms the big cliff and its floor is well exposed here. Beneath the laccolith are two sills in the lower part of the Mancos and top of the Morrison. Garfield County, Utah. May, 1937.
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View is southwest across head of south creek from South Summit Ridge. The topography is controlled by irregular upper surface of the laccolith. Garfield County, Utah. June, 1937.
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Roof of the Bull Creek stock. The cliff is porphyry with concordant Morrison beds forming the slope above it. Yellow pine and Douglas fir in Bull Creek below the cliff. Wayne County, Utah. August, 1936.
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Panorama with Image 887. Bull Mountain is a bysmalith. The porphyry comprising the mountains cuts upward with steep discordant contact across the gently dipping beds that ring the base. At the right is a narrow tongue-like sill injected laterally from the main mass. Wayne County, Utah. 1939.
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Panorama with Image 647. View down Wild Cow Canyon from sill in middle of lower Mancos shale. Sill at right is in Ferron sandstone. Waterpocket fold in distance. Navajo Mountain at left. Garfield County, Utah. August, 1937.
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View is west along the south side of Ragged Mountain. Porphyry at the right has overturned Summerville beds (center) and cuts through those beds to the Morrison just beyond the Summerville outcrop. Garfield County, Utah. May, 1937.
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View west down ridge of Little Ragged Mountain. The north edge of the laccolith coincides with the slope from the ridge top to Dugout Creek (right). Newberry laccolith in distance. Garfield County, Utah. June, 1937.
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Panorama with Image 480. Horseshoe Ridge. The cliff is porphyry at the base of the Horseshoe laccolith. The floor is exposed at several places along this cliff and can be seen in the picture at the extreme left. Wayne County, Utah. July, 1936.
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Panorama with Image 811. On the Ferron sandstone ridge south of Blue Basin. View is south to Flag Alice and to Bull Creek Pass. Garfield County, Utah. September, 1938.
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Camp at Bert Avery Seep during July 10 flood. The arroyo cut laterally nearly six feet toward the cook tent. Wayne County, Utah. July, 1936.
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Panorama with Image 301. Township 24 north, Range 1 east, Section 5. View west and northwest. At scarp of Wasatch formation. Rio Arriba County, New Mexico. 1933.
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Panorama with Images 404 and 405. View north across Fremont at Hanksville. Conglomerate of Curtis Formation truncates an anticline in Entrada Formation. Summerville and Morrison on left skyline. Wayne County, Utah. 1935.
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Old entry of the Factory Butte Coal Mine. The thin sandstone above the coal is topmost ferron. Upper Mancos shale forms most of the hill above the coal. The coal bad is 8 feet thick. Wayne County, Utah. 1935. Figure 18-A in U.S. Geological Survey Professional paper 228. 1953.
map background search result map search result map Death Valley National Park, California. Noonday Dolomite, showing structures of Scolithus tubes at the east foot of the mountain at the spur south of Galena Canyon. Circa 1960. Bioclastic bed with fragments of trilobites and brachiopods from shale unit at the base of the Nopah Formation. Death Valley National Park, California. 1960. Amphipora(?) beds are abundant in the middle of the Lost Burro Formation. Death Valley National Park, California. 1960. Death Valley National Park, California. Dowels set on terracettes showed virtually no movement in several years. Circa 1960. Township 24 north, Range 1 east, Section 5. Rio Arriba County, New Mexico. 1933. Township 24 north, Range 1 east, Section 5. Rio Arriba County, New Mexico. 1933. Death Valley National Park, California. Noonday Dolomite, showing structures of Scolithus tubes at the east foot of the mountain at the spur south of Galena Canyon. Circa 1960. Bioclastic bed with fragments of trilobites and brachiopods from shale unit at the base of the Nopah Formation. Death Valley National Park, California. 1960. Amphipora(?) beds are abundant in the middle of the Lost Burro Formation. Death Valley National Park, California. 1960. Death Valley National Park, California. Dowels set on terracettes showed virtually no movement in several years. Circa 1960.