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Publications

Browse more than 150,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

Upper Midwest Environmental Sciences Center Publications

Filter Total Items: 3312

Use of water-well data in interpreting occurrence of aquifers in northeastern Lyon County, Minnesota Use of water-well data in interpreting occurrence of aquifers in northeastern Lyon County, Minnesota

In northeastern Lyon County the areal distribution of aquifers of Cretaceous age determined from well-bottom altitudes suggests a series of interbedded sandstones striking northwestward and overlapping one another to the northeast. Probably the numerous thin sandstone aquifers in the area were deposited near the flanks of a Precambrian granite “high” area by a transgressing Late...
Authors
Harry G. Rodis

Availability of ground water in Lyon County, Minnesota Availability of ground water in Lyon County, Minnesota

Lyon County is in southwestern Minnesota, about 150 miles southwest of Minneapolis and St. Paul The basement rocks in the area consist of granite and quartzite of Precambrian age. These materials are in turn overlain by shale and sandstone of Cretaceous age, glacial drift of Pleistocene age, and alluvium of Recent age. Ground water is available primarily from aquifers in Pleistocene and...
Authors
Harry G. Rodis

The trout fishery in Shenandoah National Park The trout fishery in Shenandoah National Park

Populations of brook trout in streams of Shenandoah National Park were reduced drastically early in the past decade by a succession of unusually severe droughts and floods. The drying of stream beds, predation, and scouring were principal factors in the loss of fish. The park was closed to fishing in 1954 and 1955 to protect survivors. The small numbers of survivors quickly repopulated...
Authors
Robert E. Lennon
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