Grenville Gold Receives Confirmation of Mineral Rights in Ecuador and Prepares for Exploration


VANCOUVER, British Columbia, July 5, 2007 (PRIME NEWSWIRE) -- Grenville Gold Corporation ("Grenville" or "the Company") (Other OTC:GVLGF) (TSX-V:GVG) (Frankfurt:F9I) (WKN:A0KELU) is pleased to announce that it has received confirmation from the Ministerio de Energia y Minas ("MEM"), that the final land base received by Minera MineGrenville S.A. ("MineGrenville") on the "Rio De Oro" or "River of Gold" Property is 56,205 hectares. The Rio De Oro property is for the most part unexplored and Grenville will focus its exploration efforts on 5,000 Ha in the coming year, based on review of the property. Grenville has budgeted $200,000 for mapping, sampling and prospecting, induced polarization and magnetic surveys and the preparation of a 43-101 report.

"We know that gold has been mined in the El Oro province for 50 years," stated Len De Melt, Chairman, "We plan to take a systematic approach to the assessment of this property. This systematic approach has resulted in several good discoveries in Ecuador recently."

The Rio de Oro claims are currently held in trust by Mine Grenville's legal counsel. The claims are centrally located in Ecuador's traditional gold producing region of Pinas and Zaruma-Portovelo. The Zaruma-Portovelo mining district has historic production of more than 4.5 million ounces of gold and 19 million ounces of silver, as well as significant tonnages of copper, zinc and lead concentrates.

The Incas were producing gold in the region prior to the arrival of the Spanish in the 16th century. Most of the production occurred between 1896 and 1950, when the South American Development Company (SADCO) recovered some 3.5 million ounces of gold and 17 million ounces of silver from 8 million tons of ore mined from the Portovelo-Zaruma and Minas Nuevas operations. By 1946, SADCO stopped all exploration and development work and concentrated on mining the remaining high-grade stopes (cut-off grade of 12.5 g/t of gold).

More recent mining activity in the area has been focused on shallow underground workings through small and informal operations owned by individuals and small miners' associations. With the exception of limited exploration programs by various companies on individual concessions in the area, there has been no systematic attempt to define new ore bodies within the Zaruma-Portovelo district in the last 50 years.

About Grenville Gold Corporation

Grenville Gold (www.grenvillegold.com) is a junior resource company seeking prospective properties in Peru and Ecuador. The Company has three operating subsidiaries: 90%-owned Inversiones Mineras Alexander S.A.C. in Peru which owns the Silveria Property, Espanola Property and the Chorobal Property, Minera MineGrenville S.A. in Ecuador which owns 100% of the Rio de Oro Project and has an option to acquire the La Tigrera Project, and Parkman Diamond Corp. in Ontario, Canada which owns the Parkman Diamond Prospect. Grenville Gold plans to leverage the experience of its board and management in exploration and mining to develop its growth strategy in North and South America.

On behalf of the Board of Directors,



 "A. Paul Gill"
  President & CEO
 Ph. 604-669-8842
 info@grenvillegold.com   

The Grenville Gold Corp. logo is available at http://www.primenewswire.com/newsroom/prs/?pkgid=3048

We Seek Safe Harbour

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.


            

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