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184937 results.

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Publication Extents

Not all publications have extents, not all extents are completely accurate
A preliminary report on a zone containing thick lignite beds, Denver Basin, Colorado
Paul E. Soister
1974, Open-File Report 74-27
A zone of lignite beds of Paleocene age in the Denver Formation (Upper Cretaceous and Paleocene) lies about 800-1,500 feet above the well-known and extensively mined coal beds of the Laramie Formation (Upper Cretaceous). The zone is a few hundred to as much as 500 feet thick. Where lignite beds...
Gravel resources, urbanization, and future land use, Front Range Urban Corridor, Colorado
James M. Soule, Harold R. Fitch
1974, Open-File Report 74-178
An assessment of gravel needs in Front Range Urban Corridor markets to 2000 A.D., based on forecast population increases and urbanization, indicates that adequate resources to meet anticipated needs are potentially available, if future land use does not preclude their extraction. Because of urban encroachment onto gravel-bearing lands, this basic...
Development and evaluation of a prototype global volcanic surveillance system utilizing the ERTS-1 satellite data collection system
Peter L. Ward, Elliot T. Endo, David H. Harlow, Rex Allen, Dan Marquez, Jerry P. Eaton
1974, Open-File Report 74-124
The ERTS Data Collection System makes it feasible for the first time to monitor the level of activity at widely separated volcanoes and to relay these data rapidly to one central office for analysis. This capability opens a new era in volcanology where the hundreds of normally quiescent but potentially...
Hydrologic Unit Map -- 1974, State of Pennsylvania
Water Resources Division, U.S. Geological Survey
1974, Hydrologic Unit 39
This map and accompanying table show Hydrologic Units that are basically hydrographic in nature.  The Cataloging Units shown will supplant the Cataloging Units previously used by the U.S. Geological Survey in its Catalog of Information on Water Data (1966-72).  The previous U.S. Geological Survey Catalog-Indexing System was by map number...
Water resources data for Louisiana, water year 1973
Water Resources Division, U.S. Geological Survey
1974, Water Data Report LA-73-1
Water resources data for the 1973 water year for West Virginia including records of streamflow or reservoir storage at gaging stations, partial-record stations, and miscellaneous sites, records of water-quality data on the chemical and physical characteristics of surface water, and records of ground-water levels at index wells are given in...
Analog model study of the ground-water basin of the Upper Coachella Valley, California
Stephen J. Tyley
1974, Water Supply Paper 2027
An analog model of the ground-water basin of the upper Coachella Valley was constructed to determine the effects of imported water on ground-water levels. The model was considered verified when the ground-water levels generated by the model approximated the historical change in water levels of the ground-water basin caused by...
Geologic map of the Monrovia Quadrangle, Liberia
Charles H. Thorman
1974, Open-File Report 74-305
As part of a program undertaken cooperatively by the Liberian Geological Survey and the U. S. Geological Survey, under the sponsorship of the Government of Liberia and the Agency for International Development, U. S. Department of State, Liberia was mapped by geologic and geophysical methods during the period 1965 to...