Ore-Bodies and Topography of Mine-Hill, New Almaden, U.S. Geological Survey, Monograph XIII, Atlas Sheet VIIIPlan of the New Almaden Mine, U.S. Geological Survey, Monograph XIII, Atlas Sheet IXLongitudinal Section of the South Ore Channel, New Almaden Mine, U.S. Geological Survey, Monograph XIII, Atlas Sheet XNorth and South Section , 550 Feet West of Randol Shaft, New Almaden Mine, North and South Section through the Randol Shaft, New Almaden Mine, U.S. Geological Survey, Monograph XIII, Atlas Sheet XIEast and West Vertical Section, New Almaden Mine, U.S. Geological Survey, Monograph XIII, Atlas Sheet XIIPlan of the Clay Walls, New Almaden Mine, U.S. Geological Survey, Monograph XIII, Atlas Sheet XIII
