Download or read book First Fourteen Years of Lake Mead written by Geological Survey (U.S.) and published by . This book was released on 1954 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book First Fourteen Years of Lake Mead written by Harold Edgar Thomas and published by . This book was released on 1954 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book First Fourteen Years of Lake Mead written by Harold Edgar Thomas and published by . This book was released on 1954 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lake Mead National Recreation Area written by Jonathan Foster and published by University of Nevada Press. This book was released on 2016-08-02 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the creation, characteristics, and tribulations of the first United States National Recreation Area. It also addresses the National Park Service’s historic role in managing reservoir-based recreation in a uniquely arid region. First named the Boulder Dam Recreation Area, this parkland was created in 1936 by a memorandum of agreement between the National Park Service and the U.S. Bureau of Reclamation. Over the course of its existence, the area has served as a model for a subsequent system of National Recreation Areas. The area’s extreme popularity has, in combination with changing public attitudes regarding preservation and safety, presented the National Park Service with tremendous challenges in recent decades. Jonathan Foster’s examination of these challenges and the responses to them reveal an increasingly anxious relationship between the government, the public, and special interest groups in the American West.

Download or read book Global Change written by and published by . This book was released on 1993 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Bulletin written by and published by . This book was released on 1965 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surveying and Mapping written by and published by . This book was released on 1955 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of North American Geology written by Geological Survey (U.S.) and published by . This book was released on 1965 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1785/1918 includes material issued previously in the annual Bibliography of North America geology, and in cumulative volumes issued by N. H. Darton and F. B. Weeks. 1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.

Download or read book Bibliography of North American Geology written by and published by . This book was released on 1965 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.

Download or read book Water loss Investigations written by Guy Earl Harbeck and published by . This book was released on 1958 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Description, classification, and origin of the bauxite deposits, and their geologic setting relative to an early Eocene land surface.

Download or read book SP007 Bibliography of Nevada geology and mineral resources through 1980 an alphabetical listing by author written by and published by NV Bureau of Mines & Geology. This book was released on with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1978 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1976 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Professional Paper written by Geological Survey (U.S.) and published by . This book was released on 1958 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dictionary Catalog of the Department Library written by United States. Department of the Interior. Library and published by . This book was released on 1967 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Limnological Aspects of Lake Mead Nevada Arizona written by and published by . This book was released on 1977 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Mead is a deep, subtropical, moderately productive, desert impoundment with a negative heterograde oxygen profile occurring during; the summer stratification. investigations of the Boulder Basin of Lake Mead by the University of Nevada were initiated in November 1971. The primary objective of the study was to determine what effects industrial and sewage effluent from the Las Vegas metropolitan area, discharged into Las Vegas Bay, have had on the water quality and limnological conditions of Boulder Basin. Data from the 1975-76 period are presented in detail, with earlier data included in the summaries and discussions. Measurements of water temperature, dissolved oxygen, conductivity, pH. Alkalinity, nutrient concentrations, phytoplankton numbers, chlorophyll a, primary productivity, zooplankton concentrations, and coliform bacteria were made monthly or biweekly. Success patterns for both phytoplankton and zooplankton are described. Physical factors affecting the distribution arid deposition of enteric bacteria (including those of special public health importance) in Las Vegas Bay are discussed. The distribution of water arid of enteric bacteria of possible fecal origin into Las Vegas Bay from Las Vegas Wash were determined. The unreliability of thoroughly referenced techniques and methods, generally accepted as standard for enteric bacteria, are treated in detail. Water from Las Vegas Wash forms a density current in Las Vegas Bay. The density current is located on the bottom during isothermal conditions and in the metalimnion during summer stratification. The metalimnetic oxygen minimum was examined in some detail and found to be caused by biological respiration. Estimations of zooplankton and phytoplankton respiration indicate that they could account for the majority of the oxygen lost in the metalimnion. Primary production and algal biomass were higher in Las Vegas Bay because of nutrient enrichment from Las Vegas Wash. The inner portion of Las Vegas Bay would be classified as eutrophic and the outer portion of Las Vegas Bay and Boulder Basin as mesotrophic. Nitrogen is likely to be the most limiting nutrient.

Download or read book Man s role in changi written by and published by . This book was released on 1956 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt: