SOURCE: Grenville Gold Corporation

March 21, 2007 09:51 ET

Grenville Gold Commences 3D Modelling of Silveria Project in San Mateo District, Peru

VANCOUVER, BC -- (MARKET WIRE) -- March 21, 2007 -- Grenville Gold Corporation ("Grenville" or "the Company") (TSX-V: GVG) (OTCBB: GVLGF) is pleased to report it has received a progress report from its Peru team regarding the Silveria Project. The Silveria Project includes four past-producing mines. The Pacococha Mine, The Millotingo Mine, The Germania Mine and the Silveria Mine. Grenville is currently compiling production records from Pacococha and Millotingo in addition to work completed assessing information on the Pacococha Mine.

At present, Grenville has finished the first phase of mapping the Pacococha Mine's historic workings. A digitization project based on 108 hard copy level plans complete with assay results for the past-producing Pacacocha Mine is the first step towards a working 3D model of the entire claim area. The hard copies of various schematics, sampling programs, mining records containing information on portals, adits, drifts, tunnels and stopes previously mined or mapped for mining and other related information were acquired by Grenville's Peruvian team in January 2007 soon after the acquisition of the project. As a general operating proceedure, the Grenville team will continue to collect and assort similar information from its three other past-producing mines in the area as well as the records from the Rosa Maria Copper Mine located within the Espanola Project located in the Province of Canete.

The information contained in the historic plans is invaluable to the production of a three dimensional model of the Silveria project have been digitized complete with assay results. Based on this information, Grenville will make decisions on contracting services for an underground channel sampling program, drilling program, scoping study and an assessment of the tailings contained on or near the project.

Additional updates will be reported as they become available.

About Grenville Gold Corporation

Grenville (www.grenvillegold.com) is a junior resource company seeking prospective properties in Peru and Ecuador. The Company has three subsidiaries: Inversiones Mineras Alexander S.A.C. in Peru, Minera MineGreville S.A. in Ecuador and Parkman Diamond Corp. in Ontario, Canada. Grenville plans to leverage the experience of its Board and Management in exploration and mining to develop its growth strategy in North and South America. For further information contact 604-669-8842 or info@grenvillegold.com.

On behalf of the Board of Directors,

"A. Paul Gill"
President & CEO
Ph. 604-669-8842
info@grenvillegold.com
The TSX-Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release. All statements, other than statements of historical fact, included herein are forward-looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company's expectations are disclosed in the Company's documents filed from time to time with the TSX Venture Exchange, the British Columbia Securities Commission, the Ontario Securities Commission, and the Alberta Securities Commission. We seek safe harbour.

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