LIST OF ATLAS SHEETS. 



Sheet I. Title. 



II. Contents. 



III. Geological map of the Clear Lake district. 



IV. Geological map of the Sulphur Bank district. 



( Topographical map of the region of Clear Lake. 



' ( Geological map of the Knoxville district. 



VI. Geological map of the New Idria district. 



VII. Geological map of the New Almaden di.strict. 



VIII. Ore bodies of the New Almaden shown beneath the topography. 

 IX. Map of the workings of the New Almaden mine. 



X. Vertical cross-section of the New Almaden mine on a broken line nearly north and south. 



XI. Two north and south section.? of the New Almadeu miue. 



XII. East and west section of the New Alraadeu mine. 



XIII. Plan of clays, New Almadeu miue. 



XIV. Geological map of the Steamboat Springs district. 



