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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.

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Fifty-first annual report of the Director of the Geological Survey

The appropriations made directly for the work of the Geological Survey for the fiscal year 1930 included 13 items, amounting to $2,182,671. In addition $150,000 was appropriated for printing and binding for the Geological Survey, and an allotment of $12,960 for miscellaneous supplies was made from appropriations for the Interior Department. A detailed statement of the amounts appropriated and expe
Authors
George Otis Smith

Geologic history of the Yosemite Valley

The problem of the origin of the Yosemite Valley inherently demands a solution in quantitative terms. Its essence is, To what extent is the valley a product of glacial action, to what extent a product of stream erosion? The principal result of the investigations upon which this report is based is the determination within narrow limits of the preglacial depth of the Yosemite Valley and of other fac
Authors
Francois E. Matthes

Geology and coal resources of the Meeker quadrangle, Moffat and Rio Blanco counties, Colorado

No abstract available.
Authors
E. T. Hancock, J. B. Eby

Geology and mineral resources of northwestern Alaska

No abstract available.
Authors
Philip Sidney Smith, John Beaver Mertie

Geology and ore deposits of the Wood river region, Idaho, with a description of the Minnie Moore and near-by mines

No abstract available.
Authors
Joseph Bertram Umpleby, Lewis Gardner Westgate, Clyde Polhemus Ross, D. F. Hewett

Geology and water resources of the Kau district, Hawaii (including parts of Kilauea and Mauna Loa Volcanoes)

No abstract available.
Authors
Harold T. Stearns, W. O. Clark, Oscar Edwards Meinzer

Geology and water resources of the Mokelumne area, California

No abstract available.
Authors
Harold T. Stearns, T. W. Robinson, G.H. Taylor
By
Water Resources Mission Area, California Water Science Center

Geology of the Eagle-Circle district, Alaska

No abstract available.
Authors
John Beaver Mertie

Indiana oolitic limestone: Relation of its natural features to its commercial grading

No abstract available.
Authors
G. F. Loughlin

Mineral industry of Alaska in 1928; administration report and and selected list of Geological Survey publications on Alaska

No abstract available.
Authors
Philip Sidney Smith

Mineral resources of Alaska : report on progress of investigations in 1927

No abstract available.
Authors
Philip Sidney Smith

Mineral resources of Alaska, report on progress of investigations in 1927. Mineral industry of Alaska in 1927 and administrative report

No abstract available.
Authors
Philip Sidney Smith
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