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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: 83895

Geology of the Monument Valley-Navajo Mountain region, San Juan County, Utah

No abstract available.
Authors
Arthur A. Baker

Geomorphology of the north flank of the Uinta Mountains

The Uinta Mountains, whose northern margin is almost coincident with the southern boundary of Wyoming, extend from the Wasatch Range eastward across the northern part of Utah into northwestern Colorado. They were carved out of a large, simple anticlinal fold of sedimentary rocks arched up into essentially their present attitude at the end of the Cretaceous period. The Uinta Mountain group (Uinta
Authors
W. H. Bradley

Ground water in south-central Tennessee

No abstract available.
Authors
C.V. Theis

Ground water investigations in Utah to June 30, 1936: A part of Chapter 8 in Twentieth biennial report of the State Engineer to the governor of Utah: 1935-1936

During the past few years of drouth the importance of ground-water supplies has become more fully appreciated. During this time, because of subnormal replenishment of the ground-water reservoirs and the increased withdrawals from wells, the ground-water levels have declined in most developed areas in the State, a condition which has made the well owners acutely aware that ground water is not inexh
Authors
G.H. Taylor, H. E. Thomas
By
Water Resources Mission Area, Utah Water Science Center

Ground-water resources of Kleberg County, Texas

Abundant supplies of fresh water are obtained from deep artesian wells In all parts of Kleberg County. The water is derived from a stratum of sand, 10 to 150 feet thick, which usually has been referred to the Goliad sand but possibly may be at the base of the LIssie formation. The top of the sand Is reached at depths of around 400 feet In the western part of the county, 600 to 700 feet In the loca
Authors
Penn Poore Livingston, Thomas W. Bridges
By
Water Resources Mission Area, Oklahoma-Texas Water Science Center

Mineral deposits of the Ruby-Kuskokwim region

No abstract available.
Authors
J. B. Mertie

Mineral resources of Alaska, report on progress of investigations in 1934. Mineral industry of Alaska in 1934

No abstract available.
Authors
P. S. Smith

Mineral resources of Alaska, report on progress of investigations in 1934. Upper Copper and Tanana Rivers, Alaska

No abstract available.
Authors
F. H. Moffit

Mineral resources of the region around Boulder Dam

No abstract available.
Authors
D. F. Hewett, Eugene Callaghan, B.N. Moore, T.B. Nolan, W. W. Rubey, W. T. Schaller

New Upper Cretaceous Ostreidae from the Gulf region

No abstract available.
Authors
L. W. Stephenson

Part 2, The Mount Taylor coal field

No abstract available. 
Authors
C. B. Hunt

Part 3— The La Ventana-Chacra Mesa coal field

No abstract available.
Authors
Carle Hamilton Dane
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