SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 MIRAMAR MINING CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 60466E100 (CUSIP Number) December 31, 2002 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) * The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). CUSIP No. 60466E100 13G Page 2 of 16 Pages ________________________________________________________________________________ 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON RBC Global Investment Management Inc. ________________________________________________________________________________ 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] ________________________________________________________________________________ 3. SEC USE ONLY ________________________________________________________________________________ 4. CITIZENSHIP OR PLACE OF ORGANIZATION The jurisdiction of organization is Canada (federally incorporated company) ________________________________________________________________________________ 5. SOLE VOTING POWER N/A NUMBER OF _________________________________________________________________ SHARES 6. SHARED VOTING POWER BENEFICIALLY OWNED BY EACH N/A REPORTING _________________________________________________________________ PERSON WITH 7. SOLE DISPOSITIVE POWER N/A _________________________________________________________________ 8. SHARED DISPOSITIVE POWER N/A ________________________________________________________________________________ 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON N/A ________________________________________________________________________________ 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] ________________________________________________________________________________ 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) N/A ________________________________________________________________________________ 12. TYPE OF REPORTING PERSON* Foreign Investment Adviser which received SEC no-action relief to file on Schedule 13G as a "Qualified Institutional Investor" ________________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 60466E100 13G Page 3 of 16 Pages ________________________________________________________________________________ 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON RT Investment Management Holdings Inc. ________________________________________________________________________________ 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] ________________________________________________________________________________ 3. SEC USE ONLY ________________________________________________________________________________ 4. CITIZENSHIP OR PLACE OF ORGANIZATION The jurisdiction of organization is Canada (federally incorporated company) ________________________________________________________________________________ 5. SOLE VOTING POWER N/A NUMBER OF _________________________________________________________________ SHARES 6. SHARED VOTING POWER BENEFICIALLY OWNED BY EACH N/A REPORTING _________________________________________________________________ PERSON WITH 7. SOLE DISPOSITIVE POWER N/A _________________________________________________________________ 8. SHARED DISPOSITIVE POWER N/A ________________________________________________________________________________ 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON N/A ________________________________________________________________________________ 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] ________________________________________________________________________________ 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) N/A ________________________________________________________________________________ 12. TYPE OF REPORTING PERSON* Foreign Parent Holding Company which received SEC no-action relief to file on Schedule 13G as a "Qualified Institutional Investor" ________________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 60466E100 13G Page 4 of 16 Pages ________________________________________________________________________________ 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON The Royal Trust Company ________________________________________________________________________________ 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] ________________________________________________________________________________ 3. SEC USE ONLY ________________________________________________________________________________ 4. CITIZENSHIP OR PLACE OF ORGANIZATION The jurisdiction of organization is Canada (federally incorporated company) ________________________________________________________________________________ 5. SOLE VOTING POWER N/A NUMBER OF _________________________________________________________________ SHARES 6. SHARED VOTING POWER BENEFICIALLY OWNED BY EACH N/A REPORTING _________________________________________________________________ PERSON WITH 7. SOLE DISPOSITIVE POWER N/A _________________________________________________________________ 8. SHARED DISPOSITIVE POWER N/A ________________________________________________________________________________ 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON N/A ________________________________________________________________________________ 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] ________________________________________________________________________________ 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) N/A ________________________________________________________________________________ 12. TYPE OF REPORTING PERSON* Foreign Trust Company which received SEC no-action relief to file on Schedule 13G as a "Qualified Institutional Investor" ________________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 60466E100 13G Page 5 of 16 Pages ________________________________________________________________________________ 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Royal Mutual Funds Inc. ________________________________________________________________________________ 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] ________________________________________________________________________________ 3. SEC USE ONLY ________________________________________________________________________________ 4. CITIZENSHIP OR PLACE OF ORGANIZATION The jurisdiction of organization is Canada (federally incorporated company) ________________________________________________________________________________ 5. SOLE VOTING POWER N/A NUMBER OF _________________________________________________________________ SHARES 6. SHARED VOTING POWER BENEFICIALLY OWNED BY EACH N/A REPORTING _________________________________________________________________ PERSON WITH 7. SOLE DISPOSITIVE POWER N/A _________________________________________________________________ 8. SHARED DISPOSITIVE POWER N/A ________________________________________________________________________________ 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON N/A ________________________________________________________________________________ 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] ________________________________________________________________________________ 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) N/A ________________________________________________________________________________ 12. TYPE OF REPORTING PERSON* Foreign Investment Adviser and Mutual Funds Dealer which received SEC no-action relief to file on Schedule 13G as a "Qualified Institutional Investor" ________________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! Item 1(a). Name of Issuer: Miramar Mining Corporation Item 1(b). Address of Issuer's Principal Executive Offices: Miramar Mining Corporation 311 West First Street North Vancouver, British Columbia Canada, V7M 185 (604) 985-2572 Item 2(a). Name of Person Filing: 1. RBC Global Investment Management Inc. ("RBC GIM") 2. RT Investment Management Holdings Inc. ("RTIM") 3. The Royal Trust Company ("RT") 4. Royal Mutual Funds Inc. ("RMFI") Item 2(b). Address of Principal Business Office or, if None, Residence: 1. RBC Global Investment Management Inc. Royal Trust Tower 77 King Street West, Suite 3800 Toronto, Ontario M5K 1H1 2. RT Investment Management Holdings Inc. Royal Trust Tower, P.O. Box 97 77 King Street West, Suite 3900 Toronto, Ontario M5K 1G8 3. The Royal Trust Company Royal Trust Tower, P.O. Box 7500, Station A 77 King Street West, 6th Floor Toronto, Ontario M5W 1P9 4. Royal Mutual Funds Inc. Royal Trust Tower, P.O. Box 7500, Station A 77 King Street West Toronto, Ontario M5W 1P9 Item 2(a). Citizenship: Canada Item 2(d). Title of Class of Securities: Common Stock Item 2(e). CUSIP Number: 60466E100 Item 3. If this statement is filed pursuant to Rules 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: 1. RBC Global Investment Management Inc. is a Foreign Investment Adviser which received SEC no-action relief to file on Schedule 13G as a Qualified Institutional Investor. 2. RT Investment Management Holdings Inc. was previously a Foreign Parent Holding Company which received SEC no-action relief to file on Schedule 13G as a Qualified Institutional Investor. RT Investment Management Holdings Inc. was dissolved in 2002. 3. The Royal Trust Company is a Foreign Trust Company which received SEC no-action relief to file on Schedule 13G as a Qualified Institutional Investor. 4. Royal Mutual Funds Inc. is a Foreign Investment Adviser and Mutual Funds Dealer which received SEC no-action relief to file on Schedule 13G as a Qualified Institutional Investor. Item 4. Ownership. (a) Amount beneficially owned: 1. RBC GIM - N/A 2. RTIM - N/A 3. RT - N/A 4. RMFI - N/A (b) Percent of class: 1. RBC GIM - N/A 2. RTIM - N/A 3. RT - N/A 4. RMFI - N/A (c) Number of shares as to which such person has: (i) Sole power to vote or to direct the vote N/A (ii) Shared power to vote or to direct the vote 1. RBC GIM - N/A 2. RTIM - N/A 3. RT - N/A 4. RMFI - N/A (iii) Sole power to dispose or to direct the disposition of N/A (iv) Shared power to dispose or to direct the disposition of 1. RBC GIM - N/A 2. RTIM - N/A 3. RT - N/A 4. RMFI - N/A Item 5. Ownership of Five Percent or Less of a Class. If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following |X|. Item 6. Ownership of More than Five Percent on Behalf of Another Person. Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company. N/A Item 8. Identification and Classification of Members of the Group. N/A Item 9. Notice of Dissolution of Group. N/A Item 10. Certification. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired and are not held in connection with or as a participant in any transaction having such purpose or effect. SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. February 14, 2003 --------------------------------------- (Date) /s/ M. George Lewis --------------------------------------- (Signature) M. George Lewis / President and C.E.O., RBC Global Investment Management Inc. --------------------------------------- (Name/Title) SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. February 14, 2003 -------------------------------------- (Date) /s/ M. George Lewis -------------------------------------- (Signature) M. George Lewis / Authorized Signatory RT Investment Management Holdings Inc. -------------------------------------- (Name/Title) SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. February 14, 2003 ------------------------------------ (Date) /s/ M. George Lewis ------------------------------------ (Signature) M. George Lewis/Authorized Signatory The Royal Trust Company ------------------------------------ (Name/Title) SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. February 14, 2003 ----------------------------- (Date) /s/ Russell Purre ----------------------------- (Signature) Russell Purre/ Sr. Manager Risk Royal Mutual Funds Inc. ----------------------------- (Name/Title)