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Publication Extents

Not all publications have extents, not all extents are completely accurate
The National Geographic Names Data Base: Phase II instructions
Donald J. Orth, Roger L. Payne
1987, Circular 1011
The Geographic Names Information System is a computer-based information system developed to meet major national needs by providing information for named entities in the United States, its territories, and outlying areas. The National Geographic Names Data Base, a component of the Geographic Names Information System, currently contains most names and...
The relation of streamflow to habitat for anadromous fish in the Stillaguamish River basin, Washington
S.S. Embrey
1987, Water-Resources Investigations Report 86-4326
The techniques of Instream Flow Incremental Methodology were used to determine the habitat available over a range of simulated streamflows for anadromous fish in certain reaches of streams in the Stillaguamish River basin, Washington. The stream discharge-habitat relations were used to identify that discharge termed the optimum discharge, which provides...
Preliminary assessment of potential well yields and the potential for artificial recharge of the Elm and Middle James aquifers in the Aberdeen area, South Dakota
P.J. Emmons
1987, Water-Resources Investigations Report 87-4017
A complex hydrologic system exists in the glacial drift overlying the bedrock in the Aberdeen, South Dakota, area. The hydrologic system has been subdivided into three aquifers: the Elm, Middle James, and Deep James. These sand-and-gravel outwash aquifers generally are separated from each other by till or other fine-grained sediments....
Seismicity map of the state of Georgia
B. Glen Reagor, C. W. Stover, S. T. Algermissen, L.T. Long
1987, Miscellaneous Field Studies Map 1060
This map is one of a series of seimicity maps produced by the U.S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000.  This map shows only those earthquakes with epicenters located within the boundaries of Georgia, even though earthquakes in...
Determination of benthic-invertebrate indices and water-quality trends of selected streams in Chester County, Pennsylvania, 1969-80
C.R. Moore
1987, Water-Resources Investigations Report 85-4177
The trends of biological and chemical data collected for 12 years (1969-80) from 46 sites in Chester County were evaluated by using the sea- sonal Kendall test. Brillouin's diversity index was calculated and plotted against time for each site. The diversity index at 7 sites had upward trends significant at...