Expedition Mining Announces 2012 Exploration Program to Commence on the Black Hills, Jenny Hill and Slate Mountain Properties in Nevada

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Sept. 12, 2012) - Expedition Mining Inc. (TSX VENTURE:EXU) (the "Company") wishes to announce that it will commence exploration on the Black Hills, Jenny Hill and Slate Mountain properties in the Walker Lane District in Nevada on September 22, 2012.

The projects straddle the boundary between Nye and Mineral Counties, approximately 160 kilometres southeast of Reno. There are many historical gold and base metal mines and showings along the Walker Lane which have been active since the mid 1880s.

The Walker Lane District is known for significant gold deposits, and has been referred to as the "Walker Lane Golden Corridor". This district hosts major producing gold mines, including Round Mountain which has produced over 10 million ounces since inception; the Gold Hill property which hosts a 4.5 million ounce deposit; the Bullfrog Mine which was the nation's second largest underground gold mine in 1996, producing over 3.5 million ounces of gold; Paradise Peak which has produced 1.6 million ounces of gold and 22 million ounces of silver; the Rawhide Mine and surrounding area which has produced over 1.1 million ounces of gold and 9 million ounces of silver. The Black Hills and Jenny Hill projects are located midway between the former producing Rawhide and Paradise Peak deposits.

The three properties are at the early-stage of exploration, but initial prospecting has returned gold values in rock samples in excess of 137 g/t. The work program will focus on acquiring baseline data for all three projects by carrying out a detailed soil survey, geological mapping, ground magnetic survey, hand trenching and rock chip sampling.

"The Company is excited about these projects, the geographical area surrounding the properties, and the accessible and low-risk jurisdiction that offers opportunities for the discovery of high-grade gold deposits in mining-friendly Nevada," states Ron Atlas, President of Exploration Mining.

Mr. James Chapman, P.Geo, is the Qualified Person responsible for the design of the program, and all exploration work on the Nevada Properties will be done under his supervision. Mr. Chapman has read and approved the technical content of this news release.

Expedition Mining Inc. (TSX VENTURE:EXU) 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.

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 any 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.

ON BEHALF OF THE BOARD:

Ronald Atlas, President & Chairman of the Board

Expedition Mining Inc.

Standard & Poor's Listed

Issued Share Capital: 58,186,789