Preliminary Report of the Field Work of the U.S. Geological and Geographical Survey of the Territories for the Season of 1877
U.S. Government Printing Office, 1877 - 35 pages
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angle appear Archaean arenaceous Azoic basalt belt Big Horn Mountains Black Hills Blackfoot Mountains Buffalo Fork calcareous canon Carboniferous rocks clay Colorado composed continued Creek crest Cretaceous district Eange east eastern slope Eiver elevation Eocky epoch eruptive rocks evidence examined extending feldspathic granite flora fold formations forms fossiliferous fossils geological geologist Green River Grosventre inclining Jurassic Lake Laramie Laramie Mountains Laramie Plains latter layers lignite lignite beds lignite Tertiary limestone localities lower maps marls Missouri Mount mountain ranges northern northward northwest numerous observed occupied occur organic remains Pacific party pass Peak period plains Portneuf Potsdam sandstone present Primordial Red Buttes region ridges Rocky Mountains season sedimentaries seen side siliceous Silurian Snake River southward southwest square miles stations strata streams summit survey Sweetwater Tertiary deposits Teton Pass Teton Range Triassic true lignite Uintah upper variegated volcanic Wasatch western westward Wind River Mountains Yellowstone
Page 27 - White, the palaeontologist of the survey, has shown the identity of the lignitic series of strata east of the Rocky mountains in Colorado with the Fort Union group of the Upper Missouri river, and also its identity with the great Laramie group of the Green River basin and other portions of the region west of the Rocky mountains.
Page 34 - ... as store-rooms. * * * The only means of entrance is through a trap-door in the roof, and you ascend from story to story by means of ladders on the outside, which are drawn up at night. Their contact with Europeans has modified somewhat their ancient style of buildings, principally in substituting doorways in the walls of their houses for those in the roof. Their modern buildings are rarely over two stories in height, and are not distinguishable from those of their Mexican neighbors. The village...
Page 22 - The nuclens or central portion is composed of red feldspathic granite, with a series of metamorphic slates and schists superimposed, and thence upon each side of the axis of elevation the various fossiliferous formations of this region follow in their order to the summits of the Cretaceous, the whole inclining against the granitoid rocks at a greater or less angle. There seems to be no unconformability in these fossiliferous rocks from the Potsdam inclusive to the top of the Cretaceous.
Page 32 - Pacific slope, subdivisible into (a) a very humid, cool, forest-clad coast range; (/3) the great, hot, drier Californian valley formed by the San Juan River flowing to the north and the Sacramento River flowing to the south, both into the Bay of San Francisco ; and (y) the Sierra Nevada flora, temperate, sabalpine, and alpine.
Page 28 - Powell have been referred to the base of the Wasatch group, also belong to the Laramie group and not to the Wasatch. He has reached this later conclusion not merely because there is a similarity of type in the fossils obtained from the various strata of the Laramie group with those that were before in question, but by the specific identity of many fossils that range from the base of the Laramie group up into and through the strata that were formerly referred to the base of the Wasatch. Furthermore,...
Page 34 - Li the spring of 1877, Mr. Jackson made a tour over much of the northern part of New Mexico, and westward to the Moqui towns in Arizona, and secured materials for a number of very interesting models, illustrating the methods of the Pueblos or town-builders in the construction of their dwellings. Two villages have been selected for immediate construction, as showing the most ancient and best known examples of their peculiar architecture, viz, Taos and Acoma ; the one of many-storied, terraced houses,...
Page 28 - River were the equivalent of the lignitic formation, as it exists along the base of the Rocky Mountains in Colorado, and of the Bitter Creek series west of the mountains ; also that it was probable that the brackish-water beds on the upper Missouri must be correlated with the Laramie, and that the Wasatch group, as then defined, and the Fort Union group were identical as a whole, or in part, at least.
Page 29 - Utah, in explorations for fossil insects, and in collecting recent Coleoptera and Orthoptera, especially in the higher regions. They made large collections of recent insects at different points along the railways from Pueblo to Cheyenne and from Cheyenne to Salt Lake, as well as at Lakin, Kans., Garland and Georgetown, Colo., and in various parts of the South Park and surrounding region. For want of time, they were obliged to forego an anticipated trip to White River, to explore the beds of fossil...
Page 16 - The north branch passes along the northern side of the range, receiving very many of its tributaries and most of its waters from it, but takes its rise far to the westward of the range, near the sources of Powder river, in the " divide" between the waters of the Yellowstone and those of the Missouri.
Page 34 - They are situated upon opposite sides of a small creek, and in ancient times are said to have been connected by a bridge. They are five and six stories high, each story receding from the one below it, and thus forming a structure terraced from top to bottom. Each story is divided into numerous little compartments, the outer tiers of rooms being lighted by small windows in the sides, while those in the interior of the building are dark, and are principally used as store-rooms.