Preliminary Report of the United States Geological Survey of Montana and Portions of Adjacent Territories, Volum 9,Part 1875U.S. Government Printing Office, 1877 |
Altres edicions - Mostra-ho tot
Frases i termes més freqüents
abundant appear basalt Bison bluffs branches buffalo cañon Carboniferous coal Colorado Creek crest Cretaceous Dakota group deposited distance district Dolores Eagle River east eastern eastward eggs elevation extended farther feet flows Fork fossils Geological glaciers Grand River granite grasshoppers Gunnison Gunnison River head height herds hills inch Indians insects junction Kansas Lake larvæ latter length locust lower mass Mesa metamorphic Middle Park miles Missouri Mount nearly northern northwest observed outcrop Park Range Pass Peak plains Plata plateau Platte River portion probably red beds region Report ridge rise rocks Rocky Mountains San Juan San Luis Valley sandstones Sangre de Cristo Sawatch Range seen shales side slope South Park South Platte River southern southward species spretus spring spurs station strata stream summit swarms Tarryall thickness tion trachyte tributaries Uncompahgre Uncompahgre plateau upper volcanic western westward