UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Item 1.

Security and Issuer.

This Schedule 13D relates to the shares of common stock, no par value (the “Common Stock”), of US Gold Corporation , a Colorado corporation (the “Company”). The principal executive offices of the Company are located at Suite 4750, Brookfield Place, Bay Wellington Tower, 181 Bay Street, P.O Box 792 Toronto, ON Canada M5J 2T3.

Item 2.

Identity and Background.

(a) — (c) This Schedule 13D is being filed by (1) Minera Andes Inc., a corporation organized under the laws of Alberta Canada (“Minera Andes”), which has its principal office at Suite 4750, Brookfield Place, Bay Wellington Tower, 181 Bay Street, P.O Box 792 Toronto, ON Canada M5J 2T3, (2) Leanne Baker and (3) Michael Stein (the “Reporting Persons”).

Minera Andes is an exploration company exploring for gold, silver and copper in Argentina.  The name and principal occupation of the directors and executive officers of Minera Andes as of the date hereof are as set forth below. Unless otherwise indicated, each occupation set forth opposite an individual’s name refers to a position with Minera Andes.  The business address of each of the below individuals is Suite 4750, Brookfield Place, Bay Wellington Tower, 181 Bay Street, P.O Box 792 Toronto, ON Canada M5J 2T3.

Name

Present Occupation or Employment

Robert R. McEwen

Chief Executive Officer and President

Chief Executive Officer of US Gold

Allen V. Ambrose

Director

Corporate Director / Consultant

Victor Lazarovici

Director

Corporate Director / Consultant

Allan J. Marter

Director

Chief Financial Officer of Copperbelt Minerals Limited

Dr. Donald R.M. Quick

Director

Private investor

Michael L. Stein

Director

Chairman and Chief Executive Officer of MPI Group Inc.

Richard W. Brissenden

Director

President of Regal Consolidated Ventures Limited, Vice President of William G. Brissenden Inc.

Perry Ing

Chief Financial Officer

Chief Financial Officer of US Gold

James K. Duff

Chief Operating Officer

Nils F. Engelstad

Vice President, Corporate Affairs & Corporate Secretary

Corporate Secretary of US Gold

The principal occupation of Leanne Baker is Managing Director of Investor Resources LLC.  The business address of Investor Resources LLC, c/o US Gold Corporation Suite 4750, Brookfield Place, Bay Wellington Tower, 181 Bay Street, P.O Box 792 Toronto, ON Canada M5J 2T3.

The required information about Michael Stein is shown in above.

(d) — (e) During the past five years, none of Minera Andes, Leanne Baker, Michael Stein or, to the best knowledge of Minera Andes, any of the directors and executive officers identified above (i) has been convicted in any criminal proceeding (excluding traffic violations or similar misdemeanors) or (ii) was a party to a civil proceeding of a judicial or administrative body of competent jurisdiction resulting in his or her being subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

(f) Mr. McEwen, Mr. Ing, Mr. Engelstad, Mr. Brissenden, Dr. Quick and Mr. Stein are Canadian citizens. Mr. Lazarovici, Mr. Marter, Mr. Duff , Mr. Ambrose and Dr. Baker are US citizens.

Item 3.

Source and Amount of Funds or Other Consideration.

The Voting Agreement described in Item 4 of this Schedule 13D (the terms of which are hereby incorporated by reference) were entered into by the Company, Minera Andes and each of the following directors and executive officers of the Company and Minera Andes: (1) Robert McEwen, (2) Allen Ambrose, (3) Richard Brissenden, (4) Victor Lazarovici, (5) Allan Marter, (6) Donald Quick, (7) Michael Stein, (8) Perry Ing, (9) James Duff, (10) Nils Engelstad, (11) Michele Ashby, (12) Leanne Baker, (13) Peter Bojtos, (14) Declan Costelloe, (15) Ian Ball and (16) Stefan Spears (collectively, the “Supporting Stockholders”). The Supporting Stockholders entered into the Voting Agreement as an inducement to the Company and Minera Andes to enter into the Arrangement Agreement described in Item 4 of this Schedule 13D (the terms of which are hereby incorporated by reference). No additional consideration was paid to or by the Supporting Stockholders in connection with the execution and delivery of the Voting Agreement and thus no funds were used for such purpose.

Item 4.

Purpose of the Transaction.

(a)- (b)  On September 22, 2011, the Company entered into an Arrangement Agreement (the “Arrangement Agreement”) among the Company, McEwen Mining—Minera Andes Acquisition Corp., a newly-formed corporation wholly-owned by the Company and incorporated under the Business Corporations Act (Alberta) (“Canadian Exchange Co.”), and Minera Andes, pursuant to which the Company through Canadian Exchange Co. will acquire all of the issued and outstanding common shares of Minera Andes in exchange for exchangeable shares of Canadian Exchange Co. (the “Exchangeable Shares”) at a ratio of 0.45 of an Exchangeable Share for each outstanding Minera Andes share (the “Arrangement”).  In addition, all outstanding options to acquire Minera Andes shares will be converted into options to purchase shares of common stock of the Company at a ratio of 0.45 of a share of the Company’s common stock for each Minera Andes share underlying each such Minera Andes option. The Arrangement will be implemented by way of the plan of arrangement attached as Exhibit A to the Arrangement Agreement (the “Plan of Arrangement”) and is subject to approval by the Court of Queen’s Bench of Alberta (the “Court”). The effect of the Arrangement will result in Minera Andes becoming a wholly-owned indirect subsidiary of the Company. The Exchangeable Shares will be exchangeable on a one-for-one basis for shares of the Company’s common stock at any time at the option of the holder. Each Exchangeable Share will be substantially the economic and voting equivalent of a share of common stock of the Company.

Consummation of the Arrangement is subject to various conditions, including, among others: (i) the approval of Minera Andes’ shareholders of the Arrangement and any other necessary actions related thereto; (ii) the approval of the Company’s shareholders of the issuance of the Exchangeable Shares and the Company’s common stock to be issued upon exchange of the Exchangeable Shares and any other necessary actions related thereto and (iii) approval of the Court.

Pursuant to the terms of, and concurrently with the execution of, the Arrangement Agreement, the Supporting Stockholders entered into a voting agreement with the Company and Minera Andes (the “Voting Agreement”), pursuant to which they, among other things, agreed to (i) not solicit any competing acquisition transaction, (ii) restrict their right to transfer shares of the Common Stock directly or beneficially owned by them other than in specific circumstances, and (iii) vote all of the shares of Common Stock they own, beneficially or of record, in favor of adoption and approval of the various actions of US Gold that need approval from the shareholders of the Company and against competing acquisition proposals. Each Supporting Stockholder has irrevocably appointed Leanne Baker and Michael Stein as such Supporting Stockholder’s proxy and attorney-in-fact (with full power of substitution and re-substitution), for and in the name, place and stead of such Supporting Stockholder, to vote all of such Supporting Stockholder’s shares of Common Stock as set forth in theVoting Agreement, namely as described in clause (iii) of this sentence.

As of September 22, 2011, the Supporting Stockholders beneficially owned a total of 30,426,027 shares of Common Stock (including for this purpose 1,697,667 shares of Common Stock underlying stock options held by the

Supporting Stockholders that were exercisable on, or would become exercisable within 60 days of, the date of the Voting Agreement), representing approximately 21.25% of all shares of Common Stock outstanding as of September 22, 2011 (including for this purpose 1,697,667 shares of Common Stock underlying stock options held by the Supporting Stockholders that were exercisable on, or would become exercisable within 60 days of, the date of the Voting Agreement). Additionally, the Supporting Stockholders owned (i) additional options to purchase an aggregate of 1,283,000 shares of Common Stock which are not exercisable within 60 days of the date of the Voting Agreements.  All such shares underlying such options are subject to the terms of the Voting Agreement.  All additional securities of the Company (including all additional shares of Common Stock and all additional options to acquire shares of Common Stock) the Supporting Stockholders acquires until the termination of the Voting Agreement will also be subject to the terms of the Voting Agreement.

The Voting Agreement will automatically terminate upon the earliest to occur of (i) the termination of the Arrangement Agreement, (ii) the Effective Time (as defined in the Arrangement Agreement).  The Voting Agreement may also be terminated with respect to any Supporting Stockholder by written consent of the Company, Minera Andes and such Supporting Stockholder.

(c)                                  Not applicable.

(d)                                 The Arrangement Agreement gives the Board of Directors of Minera Andes the one-time right to nominate persons to fill, effective immediately following the Effective Time, any vacancies on the Company’s board of directors, whether such vacancies are the result of the resignation of any member of the Company’s board of directors prior to the Effective Time or an increase in the size of the Company’s board of directors, such that such nominees, appointed or elected, would constitute at least 50% of the directors of the Company’s board of directors immediately following the Effective Time, subject to approval of such nominees by the Nominating and Corporate Governance Committee of the Company’s Board of Directors.  Directors so designated by Minera Andes will serve on the Company’s Board of Directors until the Company’s first annual meeting of shareholders after the Effective Time and until their respective successors are elected and qualified, or until the death, resignation or removal of such director.

(e)                                  Under the terms of the Arrangement Agreement, the Company may not, without Minera Andes’s prior written consent, among other things, (i) declare or pay any dividends on, or make other distributions or return capital in respect of, any of its capital stock or any other equity interests, other than by a wholly-owned subsidiary to the Company or (ii) issue, sell, repurchase, redeem or otherwise acquire, any shares of its capital stock or any securities or obligations convertible into, exercisable or exchangeable for, or any rights, warrants, calls, subscriptions or options to acquire, shares of its capital stock, subject to identified exceptions.

(f)                                    At the Effective Time, if the Arrangement is completed, Minera Andes will become a wholly-owned indirect subsidiary of the Company and, subject to approval by the shareholders of the Company, the Company will change its name to McEwen Mining, Inc.

(g)                                 In connection with the Arrangement Agreement, the Company will amend its certificate of incorporation to increase the number of authorized shares of common stock to authorize a class of undesignated or “blank check” preferred stock.  Any issuance of preferred stock with voting rights could, under certain circumstances, have the effect of delaying or preventing a change of control of the Company by increasing the number of outstanding shares entitled to vote and the number of votes requires tot approve a change of control of the Company.

(h)                                 Not applicable.

(i)                                     Not applicable.

(j)                                     Other than as described above, the Reporting Persons currently have no plans or proposals which relate to, or may result in, any of the matters listed in Items 4(a)-(i) of this Schedule 13D (the Reporting Persons reserve the right to develop such plans or proposals).

The foregoing summary descriptions contained in this Item 4 of the Arrangement Agreement and the Voting Agreement are qualified in their entirety by reference to the full text of the Arrangement Agreement and the Voting Agreement, copies of which are incorporated herein by reference to Exhibits 99.1 and 99.2, respectively, of this Schedule 13D.

Item 5.

Interest in Securities of the Issuer.

(a) — (b) The Reporting Persons current beneficial ownership in the Common Stock is set forth on the cover page to this Schedule 13D and is incorporated by reference herein. Such amount includes Common Stock beneficially owned by the persons named in Item 2 above.  The ownership percentage appearing on such cover page are calculated based on an aggregate total of 143,148,053 shares of Common Stock issued and outstanding as of September 22, 2011, including (i) 136,417,988 shares of Common Stock issued and outstanding as of September 22, 2011, as represented by the Company in the Arrangement Agreement, (ii) 3,334,731 exchangeable shares that have voting and economic rights equivalent to shares of Common Stock and that are issued and outstanding as of September 22, 2011, as represented by the Company in the Arrangement Agreement and (iii) 1,697,667 shares of Common Stock underlying stock options held by the parties to the Voting Agreement as of the date of the Voting Agreement that were exercisable on, or would become exercisable within 60 days of, such date as provided by the Company.

The number of outstanding shares of Common Stock of the Company that may be deemed to be beneficially owned by Minera Andes and Michael Stein with respect to which there is (i) sole voting power is 0, (ii) shared voting power is 30,426,027, with respect to Minera Andes’s and Michael Stein’s power to vote or cause the vote of such shares in accordance with the terms of the Voting Agreement as described in Item 4 of this Schedule 13D, (iii) sole dispositive power is 0, and (iv) shared dispositive power is 0.  The number of outstanding shares of Common Stock of the Company that may be deemed to be beneficially owned by Leanne Baker with respect to which there is (i) sole voting power is 0, (ii) shared voting power is 30,426,027, with respect to Leanne Baker’s power to vote or cause the vote of such shares in accordance with the terms of the Voting Agreement as described in Item 4 of this Schedule 13D, (iii) sole dispositive power is 148,000, and (iv) shared dispositive power is 0.

Additional securities of the Company (including all additional shares of Common Stock and all additional options to acquire shares of Common Stock) of which the Supporting Stockholders acquire ownership until the termination of the Voting Agreement will also be subject to the terms of the Voting Agreement. Accordingly, any such acquisition or receipt of securities of the Company by any Supporting Stockholder may result in the Reporting Persons being deemed to be the beneficial owner of such additional securities.

The filing of this Schedule 13D by the Reporting Persons shall not be considered an admission that the Reporting Persons, for any or all purposes, constitute a “group” for purposes of Section 13(d) of the Exchange Act of 1934, as amended or for any other purposes, and such “group” is hereby expressly disclaimed.

(c) Except as set forth in this Schedule 13D with reference to the Arrangement Agreement and the Voting Agreement, none of the Reporting Person nor, to the knowledge of Minera Andes, any director or officer of Minera Andes listed in Item 2(a)-(c), has effected any transaction in the Common Stock during the past 60 days.

(d) To the knowledge of the Reporting Persons, no other person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares of Common Stock subject of this Schedule 13D.

(e) Not applicable.

The foregoing summary description contained in this Item 5 of the Voting Agreement does not purport to be complete and is qualified in their entirety by reference to the full texts of the Voting Agreement, a copy of which is incorporated herein by reference to Exhibit 99.2 of this Schedule 13D.

Item 6.

Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer.

Other than as described in Items 3, 4 and 5, which are incorporated herein by reference, and in the agreements and documents attached as exhibits hereto or incorporated herein by reference, to the knowledge of the Reporting Persons, there are no contracts, arrangements, understandings or relationships (legal or otherwise) among the persons named in Item 2 or between such persons and any other person with respect to any securities of the Company, including but not limited to transfer or voting of any of the securities, finder’s fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding of proxies, the existence of which would give another person voting or investment power over the securities of the Company.

Item 7.

Material to be Filed as Exhibits.

Exhibit
Number

Description of Exhibit

99.1

Arrangement Agreement, dated as of September 22, 2011, between US Gold Corporation, McEwen Mining — Minera Andes Acquisition Corp. and Minera Andes Inc. (incorporated by reference to Exhibit 2.1 to the Current Report on Form 8-K of US Gold Corporation filed with the SEC on September 23, 2011).

99.2

Voting Agreement, dated as of September 22, 2011, among US Gold Corporation, Minera Andes and certain individuals party thereto (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K of US Gold Corporation filed with the SEC on September 23, 2011).

99.3

Joint Filing Agreement

Date:

October 3, 2011

MINERA ANDES, INC.

By:

/s/ Nils Engelstad

Nils Engelstad

Title:

Vice President, Corporate Affairs

LEANNE BAKER

By:

Leanne Baker

By:

/s/ Nils Engelstad (1)

Title:

Attorney-in-Fact

MICHAEL STEIN

By:

Michael Stein

By:

/s/ Nils Engelstad (1)

Title:

Attorney-in-Fact