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Collection: Books and Periodicals

Water Use in the Yuba and Bear Rivers by Thomas Pagenhart (1970) (243 pages)

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TABLE OF CONTENTS LIST OF MAPS . LIST OF FIGURES LIST OF PLATES . . LIST OF TABLES ........ Chapter ONE. PART ONE: LAND AND WATER: THE PHYSICAL BACKGROUND INTRODUCTION .. The Significance of the Mining Ditch Network . The Role of Hydraulic Mining . A Tradition of Water Transfer . 4 8 Outside investment in Yuba-Bear Mining. . . The Yuba-Bear as a Part of a Statewide Water Plan . Early Water Use Systems. . . . .. woe ee New Systems of Water Use . . . . . Delimitation of the Study Area YUBA-BEAR: GEOGNOSTIC HISTORY AND PRESENT LANDSCAPE . Geognostic History... ....... Development of an Erosional Surface on Basement Rocks . ‘ Basement sedimentaries Basement metavolcanics and igneous emplacements Development of Placer Deposits in the Tertiary River System . Surface placers Stream placers Importance of Yuba-Bear gold placers Tertiary River Courses. . . .. .Review of geological reconstitutions Channel locations The Superjacent Rocks: Volcanic Ash deposits Lava caps Relationship of lava cap to gold mining Glacial Action . . i Development of Yuba=Bear headwaters-interchange corridor Present Day Landscape . . Post-Glacial Changes and Regional Differentiation The Yuba-Bear Regions .. . a4 8 wu Region 1: The Valley Floor Region 2: The Foothills Region 3: The Ridge and Canyon Region Region 4: The Sierra Crest Region ix xi Xit iv COIARAAUNWe ee ed Atrwa —_ a 20 2] Zo 26 26