Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  SUN VALLEY GOLD MASTER FUND, LTD
 2. Date of Event Requiring Statement (Month/Day/Year)
07/27/2012		 3. Issuer Name and Ticker or Trading Symbol
VISTA GOLD CORP [VGZ]
(Last)
(First)
(Middle)
C/O GOLDMAN SACHS (CAYMAN) TRUST LTD, 45 MARKET STREET, GEORGE TOWN		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

GRAND CAYMAN, E9 KY1-1103		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock (1) 6,850,584
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Common Stock Warrants (1)   (2) 07/27/2014 Common Stock 753,333 $ 3.6 D  
Common Stock Warrants   (2) 10/22/2015 Common Stock 1,673,913 $ (3) D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
SUN VALLEY GOLD MASTER FUND, LTD
C/O GOLDMAN SACHS (CAYMAN) TRUST LTD
45 MARKET STREET, GEORGE TOWN
GRAND CAYMAN, E9 KY1-1103		     X    

Signatures

Sun Valley Gold Master Fund, Ltd., By: /s/ Peter F. Palmedo, Director 07/31/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) A portion of the reported securities are included within 1,506,666 VGZ Units purchased by the reporting person for $3.00 per Unit. Each Unit consists of one share of common stock and a half warrant for a total of 1,506,666 shares and 753,333 warrants to purchase 753,333 shares.
(2) The Common Stock Warrants are exercisable at any time on or before the expiration date.
(3) The Common Stock Warrants are exercisable at the following prices: $4.00 from 10/23/11 to 10/22/12; $4.50 from 10/23/12 to 10/22/13; and $5.00 from 10/23/13 to 10/22/15.

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