Guyana Frontier Reports Appointment of New President & CEO

VANCOUVER, Sept. 29, 2011 /PRNewswire/ - Guyana Frontier Mining Corp. ('Guyana Frontier', or the 'Company') reports that Mr. Warren Stanyer has been appointed the new President and Chief Executive Officer for the Company, effective September 30, 2011. He has served as Chief Operations Officer for Guyana Frontier since December 2010, and is the Chairman of the Board of Directors.

Mr. Stanyer, a mineral exploration industry professional, began his career in 1995 and gained experience in the operations of mineral exploration companies and in the application of modern exploration methods. He served as Vice-President, Corporate Development and Corporate Secretary for Pioneer Metals Corporation until it was acquired by Barrick Gold Corporation in 2006, and in the same positions for UEX Corporation until June 2007. Mr. Stanyer was employed as President and CEO of Northern Continental Resources Inc. from June 2008 until it was acquired by Hathor Exploration Ltd, in November 2009. Currently, he acts as a director for Nevada Sunrise Gold Corp., ESO Uranium Corp., Datum Ventures Inc., and New Moon Minerals Corp., an emerging public company.

Guyana Frontier thanks Mr. David Bending for his contributions to the Company since October 2005 as President and CEO, and wishes him well in his future business endeavours.

In addition, the Company is pleased to announce, subject to regulatory approval, the issuance of an aggregate of 675,000 incentive stock options to an officer, consultant, and employees of the Company. Each option is exercisable to acquire one common share of the Company at an exercise price of $0.35 per share for a period of 3 years, expiring September 27, 2014.

About Guyana Frontier

Guyana Frontier is a public mineral exploration company listed on the TSX Venture Exchange

, and is focused on the exploration, discovery and development of precious metals deposits located within Guyana, South America. Guyana Frontier began acquiring interests in Guyanese exploration properties in 2007, and now holds various rights to obtain working interests in approximately 342,000 acres (138,400 hectares) of prospective lands. Guyana Frontier's main exploration asset is the Marudi Mountain Gold Project, which was the subject of extensive historical exploration, but has not been the focus of a diamond drilling program since 2004. Guyana Frontier's goal is to develop a significant gold resource at the Marudi Mountain Gold Project, and to explore its other Guyanese projects using funding from exploration partners.

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.

Forward Looking Statements

This news release contains forward-looking statements that are based on Guyana Frontier's current expectations and estimates. Forward-looking statements are frequently characterized by words such as 'plan', 'expect', 'project', 'intend', 'believe', 'anticipate', 'estimate', 'suggest', 'indicate' and other similar words or statements that certain events or conditions 'may' or 'will' occur, and include, without limitation, statements regarding Guyana Frontier's plans with respect to the exploration and development of its projects. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause actual events or results to differ materially from estimated or anticipated events or results implied or expressed in such forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, Guyana Frontier disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein.

Guyana Frontier Mining Corp.

CONTACT: about Guyana Frontier, please contact Warren Stanyer, President

and

Chief Executive Officer at (604) 533-9288