Expedition Commences Work Program on Joy and Mt. Mervyn Properties Along the Rackla Gold Belt

VANCOUVER, BRITISH COLUMBIA--(Marketwire - June 23, 2011) -

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Expedition Mining Inc. (TSX VENTURE:EXU) (the "Company") wishes to announce the commencement of the 2011 work program on the Joy and Mt. Mervyn properties located along the Rackla Gold Belt in the Yukon. A helicopter supported camp has been set up on the Joy property at a location close to the Rackla River airstrip to facilitate logistical support. The Joy camp will serve as a central base camp for exploration work carried out on both projects.

The 2011 work program consists of detailed ground follow-up of prospective targets identified by the recently completed airborne EM and magnetic survey. This survey (News Release June 20, 2011) was successful in delineating numerous highly prospective anomalies on both the Joy and the Mt. Mervyn projects. The first phase of the 2011 field work consists of stream sediment sampling and prospecting. This will be followed up with geological mapping, rock and soil sampling over areas that return elevated metal values in stream samples.

In the region of the Joy and Mt. Mervyn properties the strongest geophysical anomalies are east-west trending, and appear to coincide with the projected locations of the Kathleen Lakes fault and the Dawson thrust. The majority of the secondary drainages in this area are north-south trending and are expected to provide good sections and exposure through the stratigraphic sequence. This will increase the effectiveness and exploration value of the stream sampling and prospecting program.

Geological and logistical support for the program is being provided by Aurora Geosciences.

The Company also wishes to announce that it has terminated its joint venture agreement with Aldrin Resource Corp. and has returned the Brew property back to Aldrin pursuant to the terms of the joint venture agreement. The Board has chosen to concentrate on the Joy and Mt. Mervyn properties which have shown exciting potential and in which the company holds 100% interest.

Information with respect to the Joy and Mt. Mervyn properties contained in this news release is approved by Bert W. Jeffries, PGeo, a qualified person required under 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

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.

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