Expedition Mining Inc. and Aldrin Resources Corp. Begin Trenching and Mapping Program on Yukon Brew Property

VANCOUVER, Sept. 9, 2010 - Expedition Mining Inc. (TSX VENTURE: EXU) (the “Company“) and Aldrin Resources Corp. (TSX VENTURE: ALN) are pleased to report that a trenching, sampling and mapping program has begun on its Brew project located in the Yukon Territory approximately 20 kilometres east of Kinross/Underworld's White Gold project. Expedition Mining is conducting exploration on the Brew property under a joint venture agreement with Aldrin Resource Corp. whereby Expedition can earn a 50% interest in the property.

Expedition Mining recently contracted with Groundtruth Exploration of Dawson to complete a soil sample survey on the Brew property and the results have been analyzed and a follow-up trench program has been initiated to evaluate the significance of the gold anomalies defined by the soil sample program.

Approximately 2,615 samples were collected in the 2010 grid soil sample survey and preliminary assay results have increased the size of the gold in soils anomaly defined by the 2009 Ryanwood program (1360 soils). The completed grid survey indicates that there is a large gold in soil anomaly that coincides with arsenic, antimony and base metal elements located in three zones that appear to be related to a strong northwest-trending fault system that is likely associated with regional structures thought to control mineralization on other active prospects in the White Gold District. The Brew property gold in soil anomaly is now over two kilometres in length and surface metal values indicate a width of up to one kilometre.

The current trenching program has been designed to develop drill targets to be tested in a core drilling campaign planned for the 2011 field season. The complex geology identified in reconnaissance mapping suggests the Brew property is underlain by multiple northwest trending fault slices which coupled with anomalies outlined by a ground magnetometer survey indicate the property has the potential to host mineralization similar to that at the nearby White Gold and Coffee properties. The basic rock types at Brew include Devonian-age metavolcanic and metasedimentary rocks with an anomalous gold-molybdenum-mercury-arsenic-antimony-nickel soil geochemical signature with gold-bearing placer deposits in adjacent drainages.

Circular topographic features on the Brew Project may reflect ring fractures associated with the doming effect of an underlying intrusion, possibly of Cretaceous age based on the presence of other Cretaceous intrusions in the area (J. Pautler, P. Geo. Brew Project Summary, 10/27/2009). Mineralization at the Coffee property of Kaminak Gold Corporation has been found within the Cretaceous aged Coffee Creek pluton (Kaminak Gold website) and associated with possible similar aged felsic dykes (Dawson Rocks core shack, August 2010).

The company also intends to add additional soil sample grid lines to close off several open-ended gold anomalies which were identified in this year's program.

Expedition is also reviewing the logistics associated with rehabilitating a landing strip that is present on the Brew claim block. The runway is not usable at this time but would require minimum work to return it to operational condition allowing fixed-wing aircraft support for future exploration programs.

Expedition Mining is optimistic that at the end of this field season several drill targets will be identified on the Brew property and that the potential for discovering economic gold values will continue to improve.

Information with respect to the Brew property contained in this press release is approved by Bert W. Jeffries, PGeo, qualified person required under National Instrument 43-101.


Expedition Mining Inc. (TSX VENTURE:EXU) is a publicly held Canadian exploration company focused on acquiring, exploring and developing mineral properties located in favorable 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.


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 the Brew property, 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 Corp.

ON BEHALF OF THE BOARD:
Johnathan Moore, President, Aldrin Resource Corp.

Standard & Poor's Listed
Issued Share Capital: 47,484,068



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.



For more information, please contact

Expedition Mining Inc.
William Galine
(604) 662-3903
bgaline@expeditionmining.com
www.expeditionmining.com

bgaline@aldrinresourcecorp.com
www.aldrinresourcecorp.com