SUN VALLEY, IDAHO--(Marketwired - Aug. 26, 2015) - Sun Valley Gold LLC ("Sun Valley") announced today that on August 25, 2015 it acquired control and direction over 25,461 common shares of Vista Gold Corp. ("Vista Gold") on behalf of Sun Valley Gold Master Fund, Ltd. (the "Master Fund"), a client account over which it has discretionary trading authority. The common shares were acquired on the open market for a purchase price of US$0.2893 per share.