Location of the area of ancient mining in relation to the area of epithermal quartz veins (purple circles). Green squares are locations of chalcedonic veinlets in rhyolite flow dome complexes, green outlines are bentonite open pits, solid black circles are the nearest outcropping sinters overlain on historic Sb soil geochemistry; 2m contours derived from LIDAR.
Location of the area of ancient mining in relation to the area of epithermal quartz veins (purple circles). Green squares are locations of chalcedonic veinlets in rhyolite flow dome complexes, green outlines are bentonite open pits, solid black circles are the nearest outcropping sinters overlain on historic Sb soil geochemistry; 2m contours derived from LIDAR.