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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Exploration of the Colorado River of the West and its tributaries: Explored in 1869, 1870, 1871, and 1872, under the direction of the Secretary of the Smithsonian Institution
In the summer of 1867, with a small party of naturalists, students, and amateurs like myself, I visited the mountain region of Colorado Territory. While in Middle Park, I explored a little cañon, through which the Grand River runs, immediately below the well-known watering-place, "Middle Park Hot Springs." Later in the fall I passed through Cedar Cañon, the gorge by which the Grand leaves the park
Authors
John Wesley Powell
Instructions for taking and recording meteorological observations and for preserving and repairing the instruments: prepared for the use of field and astronomical parties of the expeditions for geographical surveys and explorations west of the one hundred
No abstract available.
Authors
George Montague Wheeler, Richard Leveridge Hoxie, William Louis Marshall
No. 1: List of elevations principally in that portion of the United States west of the Mississippi River
No abstract available.
Authors
Ferdinand Vandeveer Hayden, Henry Gannett
Preliminary report upon a reconnaissance through southern and southeastern Nevada, made in 1869
By authority from headquarters Military Division of the Pacific, Lieut. George M. Wheeler, United States Engineers, will proceed with his civil assistants and three enlisted men to either Camps Halleck or Ruby, Nevada, and having been joined by Lieut. D.W. Lockwood, United States Engineers, now en route via Fort Churchill, will there organize a party, to consist of two-non-commissioned officers an
Authors
George Montague Wheeler, D.W. Lockwood
Report upon United States geological surveys west of the one hundredth meridian, Volume III: Geology
No abstract available.
Authors
George Montague Wheeler
Report upon United States geological surveys west of the one hundredth meridian, Volume V: Zoology
The subject of the geographical distribution and variation of our western zoölogy is one that has of late years attracted more than ordinary attention from our naturalists; and, as appropriate to the subject-matter of this volume, it is here proposed to give a brief résumé of their conclusions and generalizations, as far as they may be deemed applicable to the special natural history work of the g
Authors
George Montague Wheeler
Systematic catalogue of vertebrata of the Eocene of New Mexico, collected in 1874
The present essay completes the determination of the species of vertebrata obtained by the geographical survey under your charge in the Eocene formation of New Mexico during the field-season of 1874. The descriptions which have already appeared in your [George M. Wheeler] report to the Chief of Engineers, as published in the annual report of the latter for 1874, are not now repeated. The total num
Authors
George Montague Wheeler, E.D. Cope
Volume I: Bulletin of the United States Geological and Geographical Survey of the Territories, 1874 and 1875
No abstract available.
Authors
Ferdinand Vandeveer Hayden
Volume II: The vertebrata of the Cretaceous formations of the West
No abstract available.
Authors
Ferdinand Vandeveer Hayden, Edward D. Cope
Bulletin of the United States Geological and Geographical Survey of the Territories: Volume I, 1874 and 1875: No. 4, second series
No abstract available.
Authors
F. V. Hayden, Samuel H. Scudder, Robert Ridgeway
[Seventh] Annual Report of the United States Geological and Geographical Survey of the Territories, embracing Colorado: being a report of progress of the exploration for the year 1873
In accordance with the recommendation of the Secretary of the Interior, an appropriation of $75,000 was made for the systematic survey of Colorado, and, at as early a date as the season would permit, the party reached Denver. This place formed our starting point for the various portions of the territory which had previously been marked out for the season's work. Early in the winter, the area to be
Authors
Ferdinand Vandeveer Hayden