Calvista Gold Corporation Receives Environmental Certification

TORONTO, May 14, 2012 - Calvista Gold Corporation (TSX:CVZ) ("Calvista" or the "Company") is pleased to announce that Colombia's local environmental authority for our California Valley project has certified that all of Calvista's eleven mining titles are excluded from the Paramo Ecosystem environmental conditions.

The Company's Chief Executive Officer, Mr. Mark Haywood, stated that "the formal notice that all of Calvista's mining titles are in complete compliance with the Paramo ecosystem requirement provides a clear environmental endorsement of our California Valley project. Our Environmental team have been working diligently to improve and to monitor areas in which we operate, and together with this independent environmental certification, the Company is very pleased to be demonstrating strong corporate responsibility."

A recent notice from the Corporacion de Defensa de la Meseta de Bucaramanga (CDMB), the local environmental authority of the Department of Santander, Colombia, by letters dated April 24 and May 7, 2012, certified that based on the cartography adopted by the Ministry of the Environment by Resolution 937 of May 25, 2011, and the "Atlas de Paramos de Colombia" issued by the Colombian Alexander Von Humboldt Biological Research Institute, all eleven mining titles owned by Calvista's wholly owned subsidiary, Sociedad Minera Calvista Colombia, S.A.S. are not within areas identified as Paramo ecosystems (see Figure 1).

Paramo is an ecosystem generally above 3,200 metres elevation consisting of glacier-formed valleys and plains with lakes, peat bogs, and wet and dry grasslands intermingled with shrub lands and forest patches. Law 1382 of 2010 which amended the existing Mining Code excludes and prohibits mining and exploration activities in areas of Paramo ecosystem.


About Calvista

Calvista is a mineral exploration company focused on the acquisition, exploration and development of properties for the mining of gold and other minerals. All our prospects in the California Valley are located below 3,200 metres and are not affected by the Paramo ecosystem law. With a head office in Toronto and Colombian headquarters in Bucaramanga, Calvista is led by a management team with over 50 years of exploration and mining experience, principally in South and Central America. For further details on Calvista, please refer to Calvista's web site (www.calvistagold.com) and Calvista's Canadian regulatory filings on SEDAR at www.sedar.com.


CAUTIONARY STATEMENT:

This news release contains forward-looking information which is not comprised of historical facts. Forward-looking information involves risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information. Forward looking information in this news release includes, but is not limited to, Calvista's objectives, goals or future plans, statements regarding exploration results, exploration plans and the timing of a potential resource estimate. Factors that could cause actual results to differ materially from such forward-looking information include, but are not limited to, uncertainties inherent to preparing a resource estimate within expected timeline, capital and operating costs varying significantly from estimates, the preliminary nature of metallurgical test results, delays in obtaining or failures to obtain required governmental, environmental or other project approvals, political risks, uncertainties relating to the availability and costs of financing needed in the future, changes in equity markets, inflation, changes in exchange rates, fluctuations in commodity prices, delays in the development of projects and the other risks involved in the mineral exploration and development industry, enhanced risks inherent to conducting business in a jurisdiction such as Colombia, and those risks set out in Calvista's public documents filed on SEDAR. Although Calvista believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. Calvista disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law.

To view the map associated with this press release, please visit the following link: http://www.marketwire.com/library/20120512-calvista_gold_figure01.jpg



Contact Information

Calvista Gold Corporation
Ruben Shiffman, Executive Chairman
+1 416 504 4199
nfo@calvistagold.com

Calvista Gold Corporation
Mark Haywood, President & CEO
+1 416 504 4199
info@calvistagold.com

Calvista Gold Corporation
Donald Christie, CFO and Corporate Secretary
+1 416 504 4199
info@calvistagold.com

Calvista Gold Corporation
Gary Anstey, Investor Relations/Business Development
+1 416 504 4199
info@calvistagold.com
www.calvistagold.com