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Great Plains Metals Corp. press release

Sienna Obtains Drill Permit for Pachin Alto Exploration Program

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

CALGARY, March 28 /CNW/ - Sienna Gold Inc. (SGP.V TSX Venture Exchange) announces that it has received approval from the Peruvian Ministry of Energy and Mines to drill on the Pachin Alto Project. The Company is currently mobilizing a rig to the area and will initially drill 5 holes from 3 platforms to test the geophysical anomalies.

Surface mapping and sampling in the area of the geophysical anomalies identified large surface expressions of "vuggy quartz" silicification alteration which is also indicative of these mineralized systems. Geophysical (induced polarization) exploration has defined large, coincident chargeability and resistivity highs which are characteristic of Yanacocha and Pierina-like gold systems. The anomalies indicate sulphide mineralization beginning at a depth of 50 meters and extending to at least 400 meters below the ground surface. These IP cross-sections can be seen at the Company's website at www.siennagold.com.

Agreements have been reached with all the local communities and work is currently underway to construct access to the drill platforms. It is anticipated that drilling will commence in early April 2007. Geophysical crews are currently working at Pachin to expand the geophysical database in the drill target areas. This work will be completed in the next 10 days.

This press release has been reviewed and approved by Murray Lytle, P.Eng., 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. Although the

Company believes that the expectations reflected in such forward looking

statements are reasonable, it can give no assurance that such

expectations will prove to have been correct. These statements are

subject to certain risks and uncertainties and may be based on

assumptions that could cause actual results to differ materially from

those anticipated or implied in the forward looking statements. The

Company is under no obligation to update or alter any forward looking

statement. These risks include operational and geological risks, the

risks involved with operating in a foreign jurisdiction and the ability

of the Company to raise necessary funds for exploration. The Company's

forward looking statements are expressly qualified in their entirety by

this cautionary statement.

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Earlier from Great Plains Metals Corp.