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Research about Washington

Source-linked reports with geographic coverage including Washington.

At least 1,729 records · Page 96Linked to original sources
USGS1956

Records of wells and springs, water levels, and quality of ground water in Lewis County, Washington

This report covers an irregularly shaped area of about 830 square miles in the west and central parts of Lewis County, including most of its populated part. The area mapped spans the county from north to south within the Puget Trough and includes valleys extending eastward and westward up the major streams. The investigation was concentrated chiefly in the basins of the Cowlitz, Chehalis, and Newaukum Rivers.

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USGS1956

Geology of the Midnite Mine area, Spokane Indian Reservation, Stevens County, Washington

The Midnite mine is on the Spokane Indian Reservation, Stevens County, Wash. Geologic mapping and reconnaissance in the vicinity of the mine indicate metasedimentary rocks of probable Precambrian age have been intruded by two varieties of quartz monzonite of probable Cretaceous age. Porphyritic quartz monzonite underlies about three-fourths of the mapped area, and equigranular quartz monzonite underlies about one-thirtieth of the area. Metasedimentary rocks have been thermally metamorphosed in the vicinity of the intrusives. Uranium minerals are restricted to the vicinity of the contact between porphyritic quartz monzonite and schistose or spotted phyllite. The largest and richest uranium deposits are where the contact is relatively steeply dipping and highly irregular in detail. Uranium minerals are most abundant in brecciated and fractured or jointed schist but are also present along joints and grain boundaries in the adjacent quartz monzonite. Secondary uranium minerals comprise all known ore deposits; uraninite was found only in one diamond-drill core from the Midnite property. The origin of the deposits is not known, but several features suggest a hydrothermal origin.

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USGS1955

Ground water in the Yelm area, Thurston and Pierce counties, Washington

This report presents the results of an investigation of the ground-water resources of the Yelm area, Pierce and Thurston Counties, Wash. It was made at the request of the Division of Water Resources, Washington State Department of Conservation and Development, for the purpose of determining the availability of ground water for irrigation to replace surface water that is no longer available as a result of the abandonment of the Yelm Irrigation Ditch.

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USGS1955

Records of wells and springs, water levels, and quality of ground water in central Pierce County, Washington

Location and Extent of Area The area covered by this report (fig. 1) includes the part of Pierce County, ~ash. that lies west of the foothills of the Cascade Mountains and east of the main waterway of Puget Sound, and extends from the county line on the north to the Nisqually River on the south. Purpose and Scope of Report This report presents basic information pertaining to the ground-water resources of the central Pierce County area which has been obtained by the United States Geological Survey since the beginning of the cooperative groundwater investigation in 1937. The data have been tabulated and prepared for release at this time so that they may be used by those concerned with the development and use of ground-water supplies in the area. A comprehensive report analyzing and interpreting the basic data is being prepared and will be released in the future.

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USGS1955

Records of wells, water levels, and quality of ground water in the Sammamish Lake area, King County, Washington

This report, one of a series on the ground-water resources of the State of Washington, contains well records and other data collected during the course of an investigation in the Sammamish Lake area immediately east of Seattle, King County, Washington. Most of these investigations are conducted in cooperation with the State of Washington, Department of Conservation and Development, Division of Water Resources. However, a few investigations, including the one in the Sammamish Lake area, have been made entirely with Federal funds. A similar investigation is now being made in the area to the west, including the city of Seattle and metropolitan areas to the north and south. It is planned that results of teh two investigations will be combined into a single comprehencive report. In order that the data collected can be made available sooner, this report as been prepared with only a brief explanatory and descriptive text.

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USGS1954

Landslide conditions along the Ferry County highway parallelling Lake Roosevelt from Kettle Falls to the mouth of the Spokane River, Washington

As part of the program of the U.S. Geological Survey, landslides are being studied in several localities in the United States. These studies are directed toward assembling criteria for recognition of landslides, classification, and cataloging of remedial or control methods that have been effective. In the gorge of the Columbia Ricer in Washington, landslides of large magnitude have been active intermittently since the valley was first incised. Closure of Grand Coulee Dam, with the consequent rise of water forming Franklin D. Roosevelt Lake, has introduced the factor of a rising and fluctuating water table that accentuates the incidence of landsliding. This area was selected for study because of the magnitude of the landslides and the unknown but significant influence of a fluctuating water table. Data resulting from the studies will be summarized in a final report.

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USGS1954

Geology of the Starr molybdenum mine, Okanogan County, Washington

The Starr molybdenum mine, Okanogan County, Wash., is about 5 airline miles west of Tonasket in the north-central part of the State. The mineralized zone has been explored to a depth of 250 feet by means of three adit levels, one sublevel, and a raise which connects two of the adits and the sublevel. In all, there are about 2,700 feet of underground workings. The mine has neither machinery nor a developed water supply adequate for any work other than a small exploratory program.

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