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National Atlas of the United States

Description: This is the website for the National Atlas, which provides a comprehensive, maplike view into the enormous wealth of geospatial and geostatistical data collected for the United States. It includes many detailed, interactive maps of the nation on a wide variety of subjects such as the environment, history, government, population, and climate, as well as fully documented digital cartographic datasets and articles. The website was removed from service on September 30, 2014.
Date: September 22, 2014
Creator: United States. Department of the Interior. Geological Survey
Partner: UNT Libraries Digital Projects Unit

An Evaluation of Water-Quality Data Obtained at Four Streamflow Daily-Record Stations in Idaho

Description: From introduction: This study is limited to four U.S. Geological Survey stream-flow stations located in Idaho (figure 1). The 6 to 22 years of stations were assembled and evaluated through use of computer techniques for data plotting and regression analysis developed by Steele (1972). Objectives of this evaluation were were (1) to show which parameters were highly correlative with the levels of specific conductance and(or) discharge and (2) to see if any changes in overall chemical character of the stream had occurred over the long term.
Date: August 1973
Creator: Dyer, Kenneth L.
Partner: UNT Libraries Government Documents Department

Geology and Water Resources of the Northern Portion of the Black Hills and Adjoining Regions in South Dakota and Wyoming

Description: Introduction: this paper, which supplements the report on the geology and water resources of the southern half of the Black Hills, published in 1901, is the result of studies made at intervals during the years 1899 to 1907.
Date: 1909
Creator: Darton, Nelson Horatio
Partner: UNT Libraries Government Documents Department