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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.

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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.

Filter Total Items: 83829

On the fossil faunas of the Upper Devonian, along the meridian of 76 degrees 30', from Tompkins County, New York, to Bradford County, Pennsylvania

No abstract available.
Authors
Henry Shaler Williams

On the Quaternary and Recent Mollusca of the Great Basin, with descriptions of new forms

No abstract available.
Authors
Richard Ellsworth Call, Grove Karl Gilbert

Paleontology of the Eureka district

No abstract available.
Authors
Charles D. Walcott

Report of the United States Geological Survey of the Territories Volume III: The vertebrata of the tertiary formations of the West Book I

I send herewith a report on the Tertiary Faunae of the United States as represented by collections made in various Territories and States west of the Mississippi River, embraced within the boundaries of your survey. The explorations from which the collections have been derived cover portions of the States and Territories included between British America on the north, the western boundaries of Minn
Authors
F. V. Hayden

Silver-lead deposits of Eureka, Nevada

No abstract available.
Authors
Joseph Story Curtis

Annual report upon the geographical and topographical surveys of the territory of the United States west of the 100th meridian, in the States and Territories of California, Colorado, Kansas, Nebraska, Nevada, Oregon, Texas, Arizona, Idaho, Montana, New Me

No abstract available.
Authors
George Montague Wheeler, Montgomery Meigs Macomb

Comstock mining and miners

No abstract available.
Authors
Eliot Lord

Contributions to the knowledge of the older Mesozoic flora of Virginia

No abstract available.
Authors
William Morris Fontaine

Geology of Wisconsin: Survey of 1873-1879, Volume I

The leading purpose df this volume was determined by the following enactment, being section 1, chapter 121, of the Laws of 1876. "The people of the State of Wisconsin, represented in Senate and Assembly, do enact as follows: Section 1. That in the preparation of his final report, the chief geologist be, and he is hereby authorized to collate the general geology and the leading facts and principles
Authors
T.C. Chamberlin

Gold and silver conversion tables, giving the coining values of troy ounces of fine metal, and the weights of fine metal represented by given sums of United States money

No abstract available.
Authors
Albert Williams

Mineral resources of the United States, 1882

No abstract available.
Authors
Albert Williams

On hypersthene andesite and on triclinic pyroxene in augitic rocks

No abstract available.
Authors
Whitman Cross, Samuel Franklin Emmons