Document:

Exhibit 4.2  

September 8,
2006 

Yamana
Gold Inc.

150 York Street, Suite 1102

Toronto, Ontario M5H 3S5 

Dear
Sirs: 

Re:
Take-Over Bid Circular dated September 6, 2006 

We
have acted as United States counsel to Yamana Gold Inc. (the "Company") in connection with the registration statement on Form F-8 filed
September 8, 2006 by the Company with the Securities and Exchange Commission under the United States Securities Act of 1933, as amended (the "Registration Statement"). 

We
know that we are referred to under the headings "Legal Matters" in the Offer and Circular forming a part of the Registration Statement and we hereby consent to such use of our name in the
Registration Statement. 

Yours
very truly, 

/s/
Dorsey & Whitney LLPQuickLinks
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Exhibit 4.3  

 
 

CONSENT OF INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS    
    

We
consent to the incorporation by reference in this Registration Statement on Form F-8 of our report dated March 20, 2006 (which report expresses an unqualified opinion and
includes a separate paragraph regarding our consideration of internal control over financial reporting) relating to the financial statements of Yamana Gold Inc. as at December 31, 2005
and 2004 and for the year ended December 31, 2005, the ten-month period ended December 31, 2004, and the year ended February 29, 2004 appearing in the Report of
Foreign Private Issuer on Form 6-K of Yamana Gold Inc. filed on March 31, 2006. We also consent to the reference to us under the heading "Experts" in the Offer and
Circular which is part of this Registration Statement. 

/s/
DELOITTE & TOUCHE LLP 

	 

Independent Registered Chartered Accountants

Vancouver, British Columbia, Canada

September 6, 2006 

 
 

COMMENTS BY INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS FOR U.S.
  READERS ON CANADA – UNITED STATES OF AMERICA REPORTING DIFFERENCES    
    

The
compilation report included in the Offer and Circular, provided solely pursuant to Canadian requirements, is expressed in accordance with standards of reporting generally accepted in Canada. To
report in conformity with United States standards on the proforma financial adjustments and their application to the proforma financial statements would require an examination or review which
would be substantially greater in scope than the review as to compilation only that we have conducted. Consequently, under United States standards, such compilation report would not be
included. 

/s/
DELOITTE & TOUCHE LLP 

	 

Independent Registered Chartered Accountants

Vancouver, British Columbia, Canada

September 6, 2006 

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CONSENT OF INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS

COMMENTS BY INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS FOR U.S. READERS ON CANADA – UNITED STATES OF AMERICA REPORTING DIFFERENCESQuickLinks
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Exhibit 4.4  

 
 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM    
    

We
hereby consent to the incorporation by reference in this Registration Statement on Form F-8 of Yamana Gold Inc. of our report dated March 10, 2006 relating to the consolidated
financial statements of Viceroy Exploration Ltd. We also consent to the references to us under the heading "Experts" in such Registration Statement. 

	
 /s/  PRICEWATERHOUSECOOPERS      
	
 	

 
	Chartered Accountants	 	 
	
 Vancouver, British Columbia

September 8, 2006	
 	

 

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMQuickLinks
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Exhibit 4.5  

 
 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM    
    

We
consent to the reference to our firm under the caption "Experts" in the Registration Statement on Form F-8 to be filed on September 8, 2006
(the "Registration Statement"), pertaining to Yamana Gold Inc.'s offer to purchase all of the issued and outstanding common shares of Viceroy Exploration Ltd. and to the
incorporation by reference in the Registration Statement of our auditors' report dated February 21, 2006 relating to the consolidated balance sheets of Desert Sun Mining Corp. as at
December 31, 2005 and 2004, and the consolidated statements of shareholders' equity, operations and deficit and cash flows for the twelve-month period ended December 31, 2005, the
sixteen-month period ended December 31, 2004 and the twelve-month period ended August 31, 2003. 

	
 /s/  MCGOVERN, HURLEY, CUNNINGHAM, LLP      
 Chartered Accountants	
 	

 
	 	 	 
	Toronto, Canada

September 8, 2006	 	 

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Exhibit 4.6  

 
 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM    
    

We
consent to the reference to our firm under the caption "Experts" in the Registration Statement on Form F-8 to be filed on September 8, 2006
(the "Registration Statement"), pertaining to Yamana Gold Inc.'s offer to purchase all of the issued and outstanding common shares of Viceroy Exploration Ltd. and to the
incorporation by reference in the Registration Statement of our auditors' report dated February 10, 2006 relating to the consolidated balance sheets of Minerales de Occidente, S.A. de
C.V. as at December 31, 2005 and 2004, and the consolidated statements of income and retained earnings (deficit) and cash flows for the years then ended. 

	
 /s/  MOORE STEPHENS BAGGIA Y ASOCIADOS      
 Chartered Accountants	
 	

 
	 	 	 
	September 6, 2006	 	 

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMExhibit 4.7  

September 6,
2006 

Yamana
Gold Inc.

Ontario Securities Commission (Principal Regulator)

British Columbia Securities Commission

Alberta Securities Commission

Saskatchewan Securities Commission

The Manitoba Securities Commission

Autorite des Marches Financiers

Office of the Administrator, New Brunswick

Nova Scotia Securities Commission

Securities Commission of Newfoundland and Labrador

Registrar of Securities, Prince Edward Island 

Dear
Sirs/Mesdames: 

Re: Yamana Gold Inc. (the "Company")  

        Pursuant to Section 8.3 of National Instrument 43-101, this letter is being filed as the consent of Melvin L. Klohn, P. Geo,
Geologist Consultant, and former Vice-President of Exploration of the Company to being named in a take-over bid circular of the Company dated September 6, 2006
(the "Circular") and to the inclusion of reference to the following reports (the "Reports") and of extracts from or a summary of the Reports in the written disclosure contained in the
Circular or any other documents incorporated by reference therein: 

        "Fazenda
Nova Technical Report for an Open Pit/Heap Leach Gold Project in Brazil, dated December 22, 2003." 

        "Sao
Francisco Technical Report for an Open Pit Gravity Concentration and Heap Leach Project in Brazil dated November 2004." 

        "A
Technical Review of the Fazenda Brasileiro Gold Mine and Adjacent Exploration "Property in Bahia State, Brazil for Santa Elina Mines Corporation dated July 4, 2003." 

        I
hereby confirm that I have read the written disclosure of the Reports and extracts from or a summary of the Reports contained in the Circular and have no reason to believe that there
are any misrepresentations in the information contained therein that (i) are derived from the Reports, or (ii) are within my knowledge as a result of the services performed by the
undersigned in connection with the Reports. 

Sincerely,

	
 /s/  MELVIN L. KLOHN      
 Melvin L. Klohn, P. Geo

Geologist ConsultantExhibit 4.8  

September 6,
2006 

Yamana
Gold Inc.

Ontario Securities Commission (Principal Regulator)

British Columbia Securities Commission

Alberta Securities Commission

Saskatchewan Securities Commission

The Manitoba Securities Commission

Autorite des Marches Financiers

Office of the Administrator, New Brunswick

Nova Scotia Securities Commission

Securities Commission of Newfoundland and Labrador

Registrar of Securities, Prince Edward Island 

Dear
Sirs/Mesdames: 

Re: Yamana Gold Inc. (the "Company")  

        Pursuant to Section 8.3 of National Instrument 43-101, this letter is being filed as the consent of Velasquez Spring, P.Eng., Senior
Geologist of Watts, Griffis & McOuat Limited to being named by reference in a take-over bid circular of the Company dated September 6, 2006 (the "Circular") and to the
inclusion by reference to the following reports (the "Reports") and of extracts from or a summary of the Reports in the written disclosure contained in the Circular or any other documents
incorporated by reference therein: 

        "A
Preliminary Feasibility Study of the Santa Elina Gold Project Composed of the São Francisco, São Vicente and Fazenda Nova/Lavrinha Properties in Brazil
for Santa Elina Mines Corporation, dated July 4, 2003." 

        "A
Technical Review of the Fazenda Brasileiro Gold Mine and Adjacent Exploration Property in Bahia State, Brazil for Santa Elina Mines Corporation, dated July 4, 2003." 

        I
hereby confirm that I have read the disclosure by reference of the Reports and extracts from or a summary of the Reports contained in the Circular, and have no reason to believe that
there are any misrepresentations in the information contained therein that (i) are derived from the Reports, or (ii) are within my knowledge as a result of the services performed by the
undersigned in connection with the Reports. 

Sincerely,

	
 /s/  VELASQUEZ SPRING      
 Velasquez Spring

P.Eng., Senior Geologist

Watts, Griffis & McOuat LimitedExhibit 4.9  

September 6,
2006 

Yamana
Gold Inc.

Ontario Securities Commission (Principal Regulator)

British Columbia Securities Commission

Alberta Securities Commission

Saskatchewan Securities Commission

The Manitoba Securities Commission

Autorite des Marches Financiers

Office of the Administrator, New Brunswick

Nova Scotia Securities Commission

Securities Commission of Newfoundland and Labrador

Registrar of Securities, Prince Edward Island 

Dear
Sirs/Mesdames: 

Re: Yamana Gold Inc. (the "Company")  

        Pursuant to Section 8.3 of National Instrument 43-101, this letter is being filed as the consent of John R. Sullivan, P.Geo., Senior
Geologist of Watts, Griffis & McOuat Limited to being named by reference in a take-over bid circular of the Company dated September 6, 2006 (the "Circular") and to the
inclusion by reference to the following reports (the "Reports") and of extracts from or a summary of the Reports in the written disclosure contained in the Circular or any other documents
incorporated by reference therein: 

        "A
Preliminary Feasibility Study of the Santa Elina Gold Project Composed of the São Francisco, São Vicente and Fazenda Nova/Lavrinha Properties in Brazil
for Santa Elina Mines Corporation, dated July 4, 2003." 

        "A
Technical Review of the Fazenda Brasileiro Gold Mine and Adjacent Exploration Property in Bahia State, Brazil for Santa Elina Mines Corporation, dated July 4, 2003." 

        I
hereby confirm that I have read the disclosure by reference of the Reports and extracts from or a summary of the Reports contained in the Circular, and have no reason to believe that
there are any misrepresentations in the information contained therein that (i) are derived from the Reports, or (ii) are within my knowledge as a result of the services performed by the
undersigned in connection with the Reports. 

Sincerely,

	
 /s/  JOHN R. SULLIVAN      
 John R. Sullivan, P.Geo.

Senior Geologist

Watts, Griffis & McOuat Limited

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