Figure 10. Google Earth^TM image of the large jasperoid (yellow arrow) in the Jerritt Canyon district (F, Fig. 6) identified as a small quartz anomaly (Fig. 9). View is toward the north. Note scale at bottom left. Pointer 41°23'16.31''N, 115°58'17.10''W. Elevation 7774 ft. Eye altitude 8562 ft. Scale bar is 497 ft (151.5 m). Image © 2007 DigitalGlobe; © 2007 Europa Technologies; © 2007 TerraMetrics. The jasperoid is localized by the Bidart anticline and is hosted in unit 1 of the Hanson Creek Formation (Silurian–Ordovician) that was silicified during the Eocene (Hofstra et al., 1999). Inset shows field photograph of jasperoid from Eliason and Wilton (2005).