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Page 314, results 7826 - 7850

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Procedures and computer programs for telescopic mesh refinement using MODFLOW
Stanley A. Leake, David V. Claar
1999, Open-File Report 99-238
Ground-water models are commonly used to evaluate flow systems in areas that are small relative to entire aquifer systems. In many of these analyses, simulation of the entire flow system is not desirable or will not allow sufficient detail in the area of interest. The procedure of telescopic mesh refinement allows use of...
Digital mining claim density map for federal lands in Idaho: 1996
Paul C. Hyndman, Harry W. Campbell
1999, Open-File Report 99-543
This report describes a digital map generated by the U.S. Geological Survey (USGS) to provide digital spatial mining claim density information for federal lands in Idaho as of March 1997. Mining claim data is earth science information deemed to be relevant to the assessment of historic, current, and future ecological,...
Land and mineral ownership coverage for the Uinta Basin, Wasatch Plateau and surrounding areas, northeastern Utah
L. H. Biewick, G. A. Green
1999, Open-File Report 99-553-B
This Arc/Info coverage contains land status and Federal and State mineral ownership for approximately 25,900 square miles in northeastern Utah. The polygon coverage (which is also provided here as a shapefile) contains three attributes of ownership information for each polygon. One attribute indicates whether the surface is State owned, privately...
The Silent Canyon caldera complex — A three-dimensional model based on drill-hole stratigraphy and gravity inversion
Edwin H. McKee, Thomas G. Hildenbrand, Megan L. Anderson, Peter D. Rowley, David A. Sawyer
1999, Open-File Report 99-555
The structural framework of Pahute Mesa, Nevada, is dominated by the Silent Canyon caldera complex, a buried, multiple collapse caldera complex. Using the boundary surface between low density Tertiary volcanogenic rocks and denser granitic and weakly metamorphosed sedimentary rocks (basement) as the outer fault surfaces for the modeled collapse caldera...
Loch Vale Watershed Project quality assurance report, 1995-1998
E.J. Allstott, Michael A. Bashkin, Jill Baron
1999, Open-File Report 99-111
The Loch Vale Watershed (LVWS) project was initiated in 1980 by the National Park Service with funding from the Aquatic Effects Research Program of the National Acid Precipitation Assessment Program. Initial research objectives were to understand the processes that would either mitigate or accelerate the effects of pollution on soil...
Land and federal mineral ownership coverage for southern Wyoming
L. H. Biewick, T.J. Mercier, T.T. Saber, S.R. Urbanowski, Larry Neasloney
1999, Open-File Report 99-553-C
This Arc/Info coverage contains land status and Federal mineral ownership for approximately 37,800 square miles in southern Wyoming. The polygon coverage (which is also provided here as a shapefile) contains two attributes of ownership information for each polygon. One attribute indicates where the surface is State owned, privately owned, or,...