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Great Plains Metals Corp. press release

Sienna Completes Geophysical Study on Igor Exploration Property

TSXV - TSX Venture Exchange · Gold · Copper · Molybdenum · Rare Earth Elements · Uranium · Canada

CALGARY, July 27 /CNW/ - Sienna Gold Inc. (SGP TSX Venture Exchange) announces that it has completed its first phase of 16 kilometres of induced polarization (IP) geophysical surveying on the IGOR property. The survey consisted of 8 long lines with readings taken at 100 meter spacing and 2 shorter lines with readings taken at 25 meter spacing. The lines were 400 meters apart and trended generally northeast - southwest covering the entire property. These results are in addition to the geophysical anomalies measured at Sienna's Pachin Alto exploration prospect which were reported in the company's previous news release.

Results

A significant low resistivity and high chargeability anomaly has been interpreted from the geophysical survey. From this survey the mineralized target is at least 2,500 meters long by 500 meters wide. The depth of the anomaly varies between 150 and 400 meters (limit of measurement) and all the anomaly is near surface (50 meters or less). The shape of the anomaly is irregular and follows the base of the very steep and high Domo Igor. It is postulated that the anomaly carries under the Domo but is too far below surface to have been detected by this geophysical program. These geophysical results will be posted on the company's website in the next few days at http://www.siennagold.com. As part of the company's stage one exploration program two holes were drilled into the eastern extension of the geophysical anomaly and the logged core indicates significant mineralization. The core is currently been assayed in Lima and the results will be released when they are available. The company plans to complete a second phase geophysical survey to provide data on lines spaced every 200 meters and to find the limits of the anomaly in areas where there was no closure. The results from the recent drill holes into the anomaly will be used to calibrate the next phase of drilling. Drill locations will be selected based on the surface mapping and sampling and the geophysical survey. The company has signed a cost-sharing agreement with the local municipality for the construction of a 12 kilometre road to the community of Callanquitas from which drill pads will be accessed. Geophysics, soil sampling and other early exploration will commence soon on the recently optioned, high sulfidation Pachin Alto property. Sienna Gold Inc. is exploring in Peru for precious metals and its major project is IGOR which continues to hold management's attention and exploration direction. This press release has been reviewed and approved by Murray Lytle, P.Eng. who is the company's Qualified Person.

The TSX Venture Exchange has neither approved nor disapproved of the information contained herein.

Statements in this press release regarding the Company's business which are not historical facts are "forward-looking statements" that involve risks and uncertainties, such as estimates and statements that describe the Company's future plans, objectives or goals, including words to the effect that the Company or management expects a stated condition or result to occur. Since forward-looking statements address future events and conditions, by their very nature, they involve inherent risks and uncertainties. Actual results in each case could differ materially from those currently anticipated in such statements. %SEDAR: 00008773E

Earlier from Great Plains Metals Corp.