Expedition Mining Inc.
TSX VENTURE : EXU

Expedition Mining Inc.

May 10, 2011 09:15 ET

Expedition Begins Airborne Electromagnetic Survey on Joy and Mt. Mervyn Properties in Rackla Gold Belt

VANCOUVER, BRITISH COLUMBIA--(Marketwire - May 10, 2011) - Expedition Mining Inc. (TSX VENTURE:EXU) -

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Expedition Mining Inc. (the "Company") is pleased to announce that it has begun an airborne time-domain electromagnetic survey over the Joy and Mt. Mervyn properties. Both the Joy and the Mt. Mervyn properties, consisting of 128 and 314 claims respectively, are located in the Rackla Gold Belt. This newly discovered gold district hosts ATAC Resources' Rau property which contains drill-confirmed "Carlin-type" gold mineralization.

"Carlin-type" gold deposits are defined as economic amounts of gold finely disseminated throughout host rocks of varying composition, originating from hydrothermal processes with a structural control component. The Joy and Mt. Mervyn properties are located between the regional scale east-west trending, Dawson Thrust and the Kathleen Lakes Fault, and within a carbonate inlier of the Selwyn Basin Paleozoic tectonic province. Gold-bearing sulphide and oxide mineralization at the Rau property occurs in shallow water limestone, dolomite, and calcareous siltstone of Cambrian to Devonian age, locally intruded by Triassic granitic plutons and quartz porphyries.

Approximately 1000 line-km of high-resolution magnetic and electromagnetic data will be collected in May 2011 with the SkyTEM system. This airborne survey will identify prospective structures and conductors on the properties and provide a framework for a summer program of geological mapping and sampling. The surface exploration programs are designed to rapidly advance any new discoveries to the drilling stage.

All technical information contained in this release has been reviewed and approved by Bert W. Jeffries, PGeo, a qualified person within the meaning of National Instrument 43-101.

Expedition is a publicly held Canadian exploration company focused on acquiring, exploring and developing gold properties located in favourable geo-political climates. The company is led by a highly skilled, experienced board and management team with significant successes in managing early stage mineral exploration companies. For additional information concerning Expedition Mining Inc. or its various exploration projects please visit Expedition's website at www.expeditionmining.com.

ON BEHALF OF THE BOARD

Ronald Atlas, President & Chairman of the Board

Expedition Mining Inc.

CAUTION REGARDING FORWARD LOOKING STATEMENTS:

This news release contains "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities legislation. Generally, these forward-looking statements can be identified by the use of forward-looking terminology such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate", or "believes", or variations of such words and phrases or state that certain actions, events or results "may", "can", "could", "would", "might" or "will be taken", "occur" or "be achieved". Forward-looking statements are subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of Expedition Mining to be materially different from those expressed or implied by such forward-looking statements, including but not limited to: risks related to the exploration and potential development of its properties, the actual results of current exploration activities, conclusions of economic evaluations, changes in project parameters as plans continue to be refined, future prices of gold. Although Expedition Mining has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. Expedition Mining does not undertake to update any forward-looking statements that are incorporated by reference herein, except in accordance with applicable securities laws.

Standard & Poor's Listed

Issued Share Capital: 55,360,318

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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