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As part of a cooperative project during 1986 and 1987, personnel from the U.S. Bureau of Mines and State of Alaska Division of Geological and Geophysical Surveys studied the mineral development potential of the Chilkat Peninsula and Islands, Alaska, as part of the larger Juneau Mining District study. About 4/5 of the area is within the Alaska State Chilkat and Chilkat Islands State Parks and not open to mineral entry. This study located four new (or previously unreported) gold- copper prospects. One of these, the Road Cut prospect, was examined by trenching, drilling and geophysics. While sufficient grades and tonnages were not delineated by this work to constitute an economic deposit, they are sufficient to encourage...
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Album caption: Glacier National Park. Mountain crest north of railway from Summit to Firebrand Pass. Pre-Cambrian rocks at top, Cretaceous below. Glacier County, Montana. July 6, 1911.
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Terrace capped by Whirlpool sandstone,a member of Albion sandstone, with Niagara escarpment at right; looking east from road above Queenston. Low till bluff of Cataract basin in distance over outer part of terrace. Ontario, Canada. 1913. Plate 17 in U.S. Geological Survey Folio 190. 1913.
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Looking north down Yankee Jim Canyon, Yellowstone River, one and 1/2 miles north of Yankee Jim. Park County, Montana. 1898.
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Lingulina, frondicularia. Northern Alaska. n.d. Plate 27 in U.S.Geological Survey Professional Paper 236. 1955.
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Gower Gulch at the north end of the Black Mountains. Borate-bearing fanglomerate partly sheared across steeply tilted borate beds. Basalt flow in playa clays in the distance. Mine portal at left of center. Death Valley National Park, California. 1938. Panorama in two parts. Photo 48 and 49. (see ttp00049)
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Brecciated Ordovician (?) quartzite in basaltic fanglomerate at the north end of Artist Drive Hills near Mushroom Rock. Death Valley National Park, California. 1938.
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Colgate sandstone: person for scale, 4 miles southwest of Glendive. Dawson County, Montana. Circa 1923. Plate 5-C in U.S. Geological Survey. Professional paper 158. 1930.
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Album caption: Example of parallel, continuous bedding within sandstone of the Thumb Member, Horse Spring Formation. An outcrop in Callville wash, north of Callville Bay, shows undulatory bedding. Photo case on the left is 50 cm square. Lake Mead area. Clark County, Nevada. ca. 1975. Same as black and white figure 9-B in U.S. Geological Survey. Professional paper 1259. 1984.
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Tepee buttes, Arkansas Valley. Eastern Colorado. 1894. Photo by F.P. Gulliver
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Kane Co., Utah Averett Wash at place where it crosses the Carmel, Entrada, and Curtis formations and descends into Navajo Sandstone (Background). 1940.
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Kane Co., Utah. Gypsum on Curtis Formation (Top) Overlying Entrada Sandstone. Gypsum Wash. 1940.