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Not all publications have extents, not all extents are completely accurate
Chemical quality of ground water in Fairfax County, Virginia
J. D. Larson
1978, Open-File Report 78-268
Two maps portray the chemical quality of ground water in Fairfax County, Virginia. One map shows dissolved-solids concentration and chemical analyses diagrams. The other indicates hardness and areas of marginal water quality. Three tables of chemical analysis representing the three distinct rock types in the county are presented also. (Woodard-USGS)...
Water-quality investigation of the Vache Grasse Creek watershed, Sebastian County, Arkansas
T.E. Lamb
1978, Open-File Report 78-903
The results of a 1-year study in the upper Vache Grasse Creek watershed, Sebastian County, AR., are presented to document surface-water quality conditions before implementation of Soil Conservation Service programs. Analysis of samples collected at four sites showed that during periods of warm weather several of the parameters sampled produced...
Characteristics of the Landsat Multispectral Data System
James V. Taranik
1978, Open-File Report 78-187
Landsat satellites were launched into orbit in 1972 and 1975. Additional Landsat satellites are planned for launch in 1978 and 1981. The satellites orbit the Earth at an altitude of approximately 900 km and each can obtain repetitive coverage of cloud-free areas every 18 days. A sun-synchronous orbit is used...
Mineral resources of the Rock River Canyon Wilderness Study Area, Alger County, Michigan
Jesse William Whitlow, Philip J. Geraci, Peter C. Mory, Elizabeth R. King
1978, Open-File Report 78-527
A mineral resource evaluation of the Rock River Canyon Wilderness Study Area, Alger County, Mich., was completed in 1975 by personnel of the U.S. Geological Survey and the U.S. Bureau of Mines. The area consists of approximately 22 km2 in the Hiawatha National Forest.Rocks exposed in the area include sandstone,...
Progress toward a ground-water-quality monitoring network for Idaho
R.L. Whitehead
1978, Open-File Report 78-786
A ground-water-quality monitoring network is being designed for Idaho. The primary objectives of the network are to (1) determine the present quality of the State's ground water, (2) provide continual monitoring of groundwater quality for water-management purposes, and (3) serve as a warning system of undesirable changes in ground-water quality. Data...