Grande Portage Resources Ltd.

Grande Portage Resources Ltd.

April 27, 2007 08:00 ET

Grande Portage Engages Crone Geophysics to Conduct Down Hole and Surface PEM Survey

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - April 27, 2007) - As previously announced Grande Portage Resources Ltd. (TSX VENTURE:GPG) ("Grande Portage" or "the Company") is pleased to confirm that it has successfully intersected massive sulphide mineralization at the projected depth on the Old Sport Horizon. The Old Sport Horizon was the host rock for two former producing underground mines-Coast Copper and Benson Lake. The mines produced appreciable amounts of copper, gold, silver, cobalt and iron over almost a decade before closing in late 1972 due largely to the low commodity prices of the day.

The Company has now completed diamond drilling on 3 holes to depth at the Old Sport Horizon. In an effort to fully utilize the latest technologies and enhance the overall direction of the exploration program, the Company has engaged the services of Crone Geophysics and Exploration Ltd. of Mississauga, Ontario to conduct a Down Hole and Surface PEM survey.

The down hole survey will occur during the first week of May. This technology has assisted in the discovery and definition of numerous ore-bodies around the world. Down hole geophysics saves drilling time and associated costs when looking for step-out targets and utilizes a 3D-component probe capable of obtaining both magnetic and electromagnetic data. The data obtained by the 3D probe is gathered from both in-hole and off-hole magnetic and electromagnetic sources and once processed, provides a vectoring tool for future drill holes. Additionally, a tight-spaced ground magnetic survey will commence immediately to cover all identified target areas. This provides greater detail and definition than airborne surveys.

Grande Portage has been exploring the Merry Widow project under the premise that there exists significant remaining tonnage in peripheral magnetite zones at the existing open pits and in the Old Sport Horizon either along strike extensions or within previous workings. The airborne geophysics completed to date confirmed potential strike extensions over 8 kilometres in the Old Sport Horizon, open ended, and 3.5 kilometres on the Merry Widow. A review of former reports suggest a copper cut off grade had been previously used to delineate mineable ore. Substantial amounts of mineralized skarn material remain untested.

All relevant core from the Old Sport Horizon drilling has been split and sent to ALS Chemex Labs, North Vancouver, B.C. The Company will announce the results from the first grouping of holes as they are received.

Warren Robb, P. Geo., and George Nicholson, P. Geo., are the qualified persons for this project, and have reviewed and verified the contents of this news release.


Alistair MacLennan, Chairman/CEO

About Grande Portage Resources Ltd.

Grande Portage Resources Ltd. is a mineral exploration and development company focused on massive sulphide exploration in British Columbia. Grande Portage is operated by experienced managers and professionals who have been effective in discovery, mine development, and mining operations throughout North and South America, Africa, Europe, and Central Asia.

Statements about the Company's future expectations and all other statements in this press release other than historical facts are "forward looking statements". The Company intends that such forward-looking statements be subject to the safe harbours created thereby. Since these statements involve risks and uncertainties and are subject to change at any time, the Company's actual results may differ materially from the expected results.

The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of the content of this news release.

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