US Gold Corp. has completed comprehensive and effective blanket geochemical sample surveys covering the 20 square mile Keystone project area. The sample database now comprises 4225 soil samples, 2250 rock samples, 649 fine-sediment stream samples, and 620 altered stream cobble samples. The primary purpose of the multi-faceted 2017 geochemical surveys was to assist in identifying and defining site-specific gold targets to be drill tested in 2018. The highly anomalous geochemical levels and widespread distribution of metals being sought, in particular gold, along with associate pathfinder metals, clearly demonstrate the presence of a very large, robust gold-bearing multi-metallic Hydrothermal system at Keystone. All current data indicate that the Keystone hydrothermal system is early Tertiary in origin and similar to those that host the major Carlin-type gold deposits in Nevada. A K-Ar on biotite age date from the Walti pluton yielded 34.1 +/- 0.7ma age; additional dating studies are in progress to further assess and provide additional qualifying age dates on this clearly complex intrusive and eruptive magmatic Keystone hydrothermal system. The current geochemical data (click thumbnail below) consists of sixteen individual district-wide maps; these maps individually exhibit the eight elements of: Gold, Silver, Arsenic, Antimony, Mercury, Copper, Molybdenum and Zinc. The fine sediment stream and soil sample data are combined on one map, and the altered cobble and rock samples on the other for each element.