Mansfield Minerals Inc.
TSX VENTURE : MDR

Mansfield Minerals Inc.

October 21, 2005 13:06 ET

Mansfield Minerals Inc.: Drilling Commences at Lindero, Argentina

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Oct. 21, 2005) - Mansfield Minerals Inc. (the "Company") (TSX VENTURE:MDR) has commenced a 2,500 metre, 12-hole drill campaign on its 100% owned Lindero gold deposit in Argentina. The drill program has been designed to expand and delineate the outer limits of the deposit with the ultimate goal of expanding the known resource of 29,953,000 tonnes at 1.08 grams/ton gold (1,035,900 oz gold) using a 0.6 gram/tonne cut-off. This resource was estimated by Rio Tinto Mining and Exploration Ltd. and audited by Roscoe Postle Associates Inc. in October 2003 (for further information see the Company's news releases of September 22, 2003 and November 26, 2004).

About Mansfield Minerals Inc.

Mansfield is a mining exploration company which has focused its activities in northwestern Argentina since August 1994. The Company's current significant properties and projects consist of mineral rights covering approximately 260 square miles in three Argentine provinces and one Canadian province. Phase II drilling stage has been completed at its Rio Grande gold-copper property, with further drilling planned in January 2006.

This news release has been reviewed by Gordon P. Leask, P.Eng., President of the Company, and a Qualified Person ("QP") as defined by National Instrument 43-101 (Standards of Disclosure for Mineral Projects).

On behalf of the Board of Directors,

Gordon P. Leask, P.Eng., President


The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

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