Pacific Ridge Completes Airborne Magnetic Survey at Mariposa

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 04/13/11 -- Pacific Ridge Exploration Ltd. (TSX VENTURE: PEX) (the 'Company') reports that an airborne magnetometer survey has been completed over a portion of the Mariposa Gold Property in the Yukon's White Gold District. The survey covered the area of six gold-in-soil targets detected during the 2010 exploration program, including the 3500m long x 600m wide Skookum Jim gold anomaly.

The high resolution aeromagnetic survey was conducted by Precision GeoSurveys Inc. of Vancouver, BC, using a helicopter-mounted cesium vapor magnetometer. A total of 900 line kilometers were flown along 100 metre spaced lines and 1000 metre spaced tie lines. Results are currently being processed and will be subsequently interpreted together with geochemical datasets.

Recent work by Pacific Ridge, and also by some companies within the White Gold District, has shown that structural discontinuities are favourable hosts for gold mineralization. Both airborne and ground magnetic surveys have been successfully used as mapping tools for delineation of these structures, as well as alteration patterns and underlying rock types. The integration of geophysical results with gold-in-soil geochemical trends is therefore considered an effective method for identification of drill targets.

Follow-up ground magnetic and electromagnetic surveying will also be conducted in advance of this year's drill program at Mariposa. This survey will be conducted at greater detail than the aeromagnetic coverage and will provide optimum definition of targets for initial drill holes. Commencement of drilling is planned for mid-June.

During the period to April 7, 2011 exercise of $0.15 share purchase warrants has resulted in the issuance of 1,205,643 common shares with funds received in the amount of $180,846.

The technical information in this release has been reviewed by Janice Fingler, P.Geo, who acts as the Company's qualified person for the purposes of NI43-101.

John S. Brock, President

Pacific Ridge Exploration Ltd.

Forward-Looking Information

This release includes certain statements that may be deemed 'forward-looking statements'. All statements in this release, other than statements of historical facts, that address exploration drilling and other activities and events or developments that Pacific Ridge Exploration Ltd. ('Pacific Ridge') expects to occur, are forward-looking statements. Forward-looking statements in this news release include statements regarding the placements and future exploration plans and expenditures. Although Pacific Ridge believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those forward-looking statements. Factors that could cause actual results to differ materially from those in forward looking statements include market prices, exploration successes, and continued availability of capital and financing and general economic, market or business conditions. These statements are based on a number of assumptions including, among other things, assumptions regarding general business and economic conditions, the timing and receipt of regulatory and governmental approvals for the transactions described herein, the ability of Pacific Ridge and other parties to satisfy stock exchange and other regulatory requirements in a timely manner, the availability of financing for Pacific Ridge's proposed transactions and programs on reasonable terms, and the ability of third party service providers to deliver services in a timely manner. Investors are cautioned that any such statements are not guarantees of future performance and actual results or developments may differ materially from those projected in the forward-looking statements. Pacific Ridge does not assume any obligation to update or revise its forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law.

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.

Contacts:

Pacific Ridge Exploration Ltd. - Corporate Information

John S. Brock

President and CEO

(604) 687-4951

(604) 688-4670 (FAX)
www.pacificridgeexploration.com


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