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Yamana Gold provides development and near development stage projects update

Posted on: Wednesday, 17 June 2009, 06:30 CDT

TORONTO, June 17 /PRNewswire-FirstCall/ - YAMANA GOLD INC. (TSX: YRI; NYSE: AUY; LSE: YAU) today announced further advancements in its development and near development stage projects, supporting the Company's continued focus on advancing its higher-return, highly prospective development stage projects.

Mercedes, Mexico

The Mercedes project is located in northern Sonora, Mexico approximately 200 kilometres south of Tucson, Arizona. The deposit consists of a complex gold-silver hydrothermal low-sulphidation vein/stockwork system.

A positive pre-feasibility study for Mercedes was previously provided in February 2009. The following is a summary of the results of the study:

Reserves (Proven and Probable): 2.65 mt grading 7.58 g/t AuEq containing 645,490 GEO Resources (Measured and Indicated): 2.39 mt grading 9.19 g/t AuEq containing 705,000 GEO Construction Capital Cost: US$152M Cash Cost (per GEO): US$264 Production (per year): 118,000 GEO Initial Mine Life: 6 years IRR: 22.4%

The financial analysis as provided in February 2009 was based on a gold price of US$814 per ounce and a silver price of US$13 per ounce and a 5% discount rate resulting in an initial value of US$73 million. The Company's further analysis under the same assumptions although with cash flow based on US$950 per ounce of gold and US$15 per ounce of silver results in a value of US$120 million. This does not take into account the benefit of discovery of any additional ounces or extension of the mine life beyond the period in the study.

The Company indicated on delivery of the study that while the project had sufficient return and value, supporting a development decision, further drilling would be undertaken to ensure the continuity of grade and increase the total mineable ounces, thereby increasing mine life above the initial level in the study.

The study was based on drilling and other information up to the end of the third quarter of 2008.

Yamana continues to advance the project in 2009. Yamana is targeting 30,000 metres of drilling in 2009, with a budget of approximately US$4.0 million and the principal goal of extending the mine life.

To date this year, drilling at Mercedes has been focused primarily on the northwest extension of the Mercedes and the Lupita vein targets, with a total of 16,450 metres of core in 43 holes having been completed (see attached map).

In addition, in 2009, Yamana also completed construction of an underground ramp into the Mercedes vein to upgrade reserves to the proven category and also to confirm metallurgy, geotechnical and geological parameters. The underground ramp will accelerate construction and development of Mercedes once a construction decision is made in expected to be in the first quarter of 2010. To date, the tunnel has over 800 metres of development and two vein cross-cuts have been completed at the levels 1,100 and 1,080 metres, confirming both vein width and grades.

Las Barrancas -------------

Recent drilling on the Mercedes northwest extension area has identified a major fault zone containing epithermal quartz-carbonate veins, which is covered by post-mineral volcano-sedimentary rocks. Fourteen widely spaced core holes have tested the Las Barrancas zone along a strike length of 1,800 metres. The zone begins approximately 250 metres northwest of the Mercedes grade shell on an apparent sub-parallel structural trend. Within the trend, Au-Ag bearing stockwork zones up to 25 metres wide have been identified, containing fissure veins to 9.0 metres in width. The zone has been tested by very wide-spaced holes and is open at depth. The veins display many of the same stages of quartz-carbonates and epithermal characteristics as the Mercedes vein. The results from this drilling are not included in the resource estimate from the February 2009 pre-feasibility study and are expected to increase that resource estimate.

The best intersection year-to-date (using a 2.0 g/t AuEq cutoff) is M09-449 intersecting 7.70 metres of 17.48 g/t Au and 66.0 g/t Ag and other results include:

------------------------------------------------------------------------- Intercept Hole Number From (m) To (m) Width (m) Au (g/t) Ag (g/t) ------------------------------------------------------------------------- M09-423D 170.69 173.74 3.05 26.03 22.2 ------------------------------------------------------------------------- M09-427D 198.9 199.95 1.05 6.15 31.0 ------------------------------------------------------------------------- M09-428D 294.38 297.18 2.80 2.18 11.5 ------------------------------------------------------------------------- M09-439D 257.85 266.15 8.30 3.65 59.0 ------------------------------------------------------------------------- M09-440D 182.27 182.70 0.43 8.48 40.0 ------------------------------------------------------------------------- M09-441D 194.46 194.70 0.24 13.25 143.0 ------------------------------------------------------------------------- M09-442D 167.85 168.17 0.32 7.82 34.0 ------------------------------------------------------------------------- M09-449D 203.60 211.30 7.70 17.48 66.0 -------------------------------------------------------------------------

The intersection in Hole 449 was two kilometres to the northwest of the area of known mineralization and is on the Corona do Oro vein, and supports the view that a substantial increase in the overall resource at Mercedes is possible.

Results were also returned from three geotechnical holes that were drilled in 2008 within the main Mercedes area, but not assayed until this year, and have not yet been incorporated into the resource estimate. The three holes show excellent correlation to modeled grades and widths from nearby drill holes, with the following results (using a 2.0 g/t AuEq cutoff):

------------------------------------------------------------------------- Hole Intercept Number Ore Shoot From (m) To (m) Width (m) Au (g/t) Ag (g/t) ------------------------------------------------------------------------- M08-377D Tierra de Nadie 202.66 212.45 9.79 36.33 261.6 ------------------------------------------------------------------------- M08-379D Corona de Oro 226.48 237.74 11.26 24.38 722.0 ------------------------------------------------------------------------- M08-383D Breccia Hill 155.45 156.53 1.08 7.84 280.0 -------------------------------------------------------------------------

These drill results at Las Barrancas are encouraging as the footprint of known zone of veining, hydrothermal alteration and Au-Ag mineralization has been extended on strike under post-mineral cover rocks by over 1,800 metres.

Lupita ------

Drilling has focused on testing the down-dip continuity along a 600-metre strike length of the Lupita vein zone, located at the contact between the upper host andesite and lower lithic tuff. All holes intersected the vein/stockwork zone, which ranges from 3.0 to 70 metres in width.

Five widely-spaced holes successfully intersected Au-Ag mineralization up to 150-metres down dip from initial reverse circulation holes drilled in 2006. The zone is open along strike and at depth.

The best intersections year-to-date (using a 2.0 g/t AuEq cutoff) include L09-021D intersecting 7.64 metres of 28.15 g/t Au and 52 g/t Ag:

------------------------------------------------------------------------- Intercept Hole Number From (m) To (m) Width (m) Au (g/t) Ag (g/t) ------------------------------------------------------------------------- L09-017D 176.48 178.18 1.70 6.01 52.0 ------------------------------------------------------------------------- L09-018D 192.46 194.84 2.38 3.47 31.0 ------------------------------------------------------------------------- L09-019D 140.60 141.15 0.55 10.55 115.0 ------------------------------------------------------------------------- L09-020D 217.65 219.15 1.50 3.97 10.0 L09-020D and 222.20 223.54 1.34 2.64 32.7 ------------------------------------------------------------------------- L09-021D 193.51 201.15 7.64 28.15 52.0 -------------------------------------------------------------------------

Drilling at Lupita has shown the vein system to be substantially more robust than indicated in surface exposures and at higher grades.

Additional drilling at both Las Barrancas and Lupita is planned to define potential high grade ore shoots. Mercedes continues to show a high geological potential given the size of the property and the results of geological and geophysical studies to date, which support a feasibility study and construction decision for Mercedes expected by the first quarter of 2010. The Company presently anticipates the completion of construction and commencement of commissioning within 24 to 30 months.

Pilar, Brazil

In April 2009, Yamana delivered an update to Pilar's resource estimate of 12.6 million tonnes grading 3.61 g/t gold containing 1.46 million gold ounces, which demonstrated a substantial increase in inferred resource of 51% and a grade increase of 48% year-over-year. The increase in resource is entirely from the high-grade Jordino deposit which is the largest and most prospective, and now represents approximately 85% of total contained gold ounces.

Pilar is located east of the Crixas Greenstone Belt which hosts the Serra Grande gold mine and the Guarinos Greenstone Belt which is east of the Crixas Belt and similar in shape and size. The Crixas and Pilar gold mineralization have very similar structural control, hydrothermal alteration, stratigraphy and tectonic history, and are approximately 40 kilometres apart. Yamana controls approximately 65,000 hectares of mineral claims and permits that cover the majority of the Guarinos and Pilar Greenstone belts.

Yamana has budgeted US$4.1 million for exploration in 2009 for the Pilar project. Approximately 20,000 metres of diamond drilling are planned, of which approximately 12,000 metres will be focused on growing the resource along strike and down dip. Infill drilling and tunneling, primarily at Jordino, is also planned to further define the current inferred resource to upgrade the resource category. The Company's view is that an initial mineable resource level of one million ounces would support a development decision.

Drilling to date this year has focused on extending the main Jordino mineralization down dip and the Company continues to report positive results (see map attached). Drill hole 117 extended mineralization significantly along strike by 1,000 metres and under cover rocks of the Araxa Group. The best drill intercepts to date are:

------------------------------------------------------------------------- Intercept Hole ID From (m) To (m) Width (m) Au (g/t) ------------------------------------------------------------------------- 307 309 2 3.02 JD_125 --------------------------------------------------------------- 372 373 0.8 6.56 ------------------------------------------------------------------------- JD_126 272 274 2.1 7.97 ------------------------------------------------------------------------- 300 301 1 8 --------------------------------------------------------------- 317 318 1 3.1 JD_129 --------------------------------------------------------------- 345 347 2 8.58 --------------------------------------------------------------- 345 346 1 16.36 ------------------------------------------------------------------------- 293 300 7 13.28 JD_111 --------------------------------------------------------------- 293 295 2 45.91 ------------------------------------------------------------------------- 472 474 2 4.76 --------------------------------------------------------------- JD_117 472 473 1 9.44 --------------------------------------------------------------- 493 494 1 4.71 ------------------------------------------------------------------------- JD_119 63 66 3 4.23 ------------------------------------------------------------------------- 167 169 2 4.12 --------------------------------------------------------------- 174 177 3 3.78 --------------------------------------------------------------- JD_113 182 184 2 3.77 --------------------------------------------------------------- 188 191 3 3.15 --------------------------------------------------------------- 190 191 1 8.1 ------------------------------------------------------------------------- 320 321 1 8.66 JD_103 --------------------------------------------------------------- 328 329 1.3 2.72 ------------------------------------------------------------------------- JD_122 435 436 1 5.88 -------------------------------------------------------------------------

The Pilar project is rapidly developing into a defined resource for feasibility. Yamana believes Pilar is highly prospective and is an important near development stage project for the Company with the potential to be accelerated. A feasibility study and construction decision is expected in the first quarter of 2010.

Minera Florida, Chile

Minera Florida has been a very successful operating mine for more than 20 years with exploration at and around the mine still in early stages and prospective targets that remain underexplored. Exploration efforts have focused on the delineation of the newly discovered Centenario deposit and the Polvorin deposit (see map attached). Both have been traced along strike lengths of approximately 400 metres and are open to depth and along strike. The best intersections are:

Centenario ---------- ------------------------------------------------------------------------- Hole Number Depth (m) Width (m) Au(g/t) Ag(g/t) Zn (%) ------------------------------------------------------------------------- 669 126.9 9.3 9.53 13 0.67 ------------------------------------------------------------------------- 670 40.8 2.33 15.91 12 0.35 ------------------------------------------------------------------------- 675 82.2 6.63 9.8 15 0.84 ------------------------------------------------------------------------- 677 71.4 5.73 5.07 13 1.06 ------------------------------------------------------------------------- Polvorin -------- ------------------------------------------------------------------------- Hole Number Depth (m) Width (m) Au(g/t) Ag(g/t) Zn (%) ------------------------------------------------------------------------- 672 198.2 1.3 7.95 8 2.76 ------------------------------------------------------------------------- 674 201.5 2.25 11.6 49 1.94 ------------------------------------------------------------------------- 676 189.27 1.63 9.08 12 1.59 ------------------------------------------------------------------------- 678 199.9 2.69 5.9 12 2.5 ------------------------------------------------------------------------- 681 199.2 3.64 7.5 17 0.7 -------------------------------------------------------------------------

Both Centenario and Polvorin contain higher grades than the current mine grades. Drilling will continue through the third quarter and a resource estimate for these new targets is expected to be completed in the fourth quarter of this year.

Quality Assurance and Quality Control

While each of Mercedes and Pilar as stand-alone projects may not be considered material to the Company, the analyses and studies conducted for these projects had quality control measures and quality assurances consistent with technical and similar reports and information for the Company's material properties.

Qualified Person

William H. Wulftange, P.Geo., Director, Technical Compliance for Yamana Gold Inc. has reviewed and confirmed the data contained within this Press Release relating to Pilar and Minera Florida and serves as the Qualified Person as defined in National Instrument 43-101.

Mark Hawksworth, P. Geo., Senior Geologist for Yamana Gold Inc. has reviewed and confirmed the data contained within this press release relating to Mercedes and serves as the Qualified Person as defined in National Instrument 43-101.

UPCOMING EVENTS ON DEVELOPMENT STAGE PROJECTS

- Update to 2007 C1 Santa Luz economic analysis: Q3 2009 - C1 Santa Luz construction decision: H2 2009 - Update to QDD Lower West: by end of year 2009 - Ernesto/Pau-a-Pique feasibility study and construction decision: by end of 2009 - Mercedes feasibility study and construction decision: Q1 2010 - Pilar feasibility study and construction decision: Q1 2010

About Yamana

Yamana is a Canadian-based gold producer with significant gold production, gold development stage properties, exploration properties, and land positions in Brazil, Argentina, Chile, Mexico and Central America. The Company plans to continue to build on this base through existing operating mine expansions and throughput increases, the advancement of its exploration properties and by targeting other gold consolidation opportunities in the Americas.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS: This news release contains or incorporates by reference "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities legislation. Except for statements of historical fact relating to the Company, information contained herein constitutes forward-looking statements, including any information as to the Company's strategy, plans or future financial or operating performance. Forward-looking statements are characterized by words such as "plan," "expect", "budget", "target", "project", "intend," "believe", "anticipate", "estimate" and other similar words, or statements that certain events or conditions "may" or "will" occur. Forward-looking statements are based on the opinions, assumptions and estimates of management considered reasonable at the date the statements are made, and are inherently subject to a variety of risks and uncertainties and other known and unknown factors that could cause actual events or results to differ materially from those projected in the forward-looking statements. These factors include the impact of general business and economic conditions, global liquidity and credit availability on the timing of cash flows and the values of assets and liabilities based on projected future conditions, fluctuating metal prices (such as gold, copper, silver and zinc), currency exchange rates (such as the Brazilian Real and the Chilean Peso versus the United States Dollar), possible variations in ore grade or recovery rates, changes in the Company's hedging program, changes in accounting policies, changes in the Company's corporate resources, changes in project parameters as plans continue to be refined, changes in project development, production and commissioning time frames, risk related to joint venture operations, the possibility of project cost overruns or unanticipated costs and expenses, higher prices for fuel, steel, power, labour and other consumables contributing to higher costs and general risks of the mining industry, failure of plant, equipment or processes to operate as anticipated, unexpected changes in mine life, final pricing for concentrate sales, unanticipated results of future studies, seasonality and unanticipated weather changes, costs and timing of the development of new deposits, success of exploration activities, permitting time lines, government regulation of mining operations, environmental risks, unanticipated reclamation expenses, title disputes or claims, limitations on insurance coverage and timing and possible outcome of pending litigation and labour disputes, as well as those risk factors discussed or referred to in the Company's annual Management's Discussion and Analysis and Annual Information Form for the year ended December 31, 2008 filed with the securities regulatory authorities in all provinces of Canada and available at www.sedar.com, and the Company's Annual Report on Form 40-F filed with the United States Securities and Exchange Commission. Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results not to be anticipated, estimated or intended. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. The Company undertakes no obligation to update forward-looking statements if circumstances or management's estimates, assumptions or opinions should change, except as required by applicable law. The reader is cautioned not to place undue reliance on forward-looking statements. The forward-looking information contained herein is presented for the purpose of assisting investors in understanding the Company's further advancements in its development and near development stage projects as well as the Company's plans and objectives and may not be appropriate for other purposes.

CAUTIONARY NOTE TO U.S. INVESTORS CONCERNING ESTIMATES OF MEASURED, INDICATED AND INFERRED MINERAL RESOURCES

This news release uses the terms "Measured", "Indicated" and "Inferred" Mineral Resources. United States investors are advised that while such terms are recognized and required by Canadian regulations, the United States Securities and Exchange Commission does not recognize them. "Inferred Mineral Resources" have a great amount of uncertainty as to their existence, and as to their economic and legal feasibility. It cannot be assumed that all or any part of an Inferred Mineral Resource will ever be upgraded to a higher category. Under Canadian rules, estimates of Inferred Mineral Resources may not form the basis of feasibility or other economic studies. United States investors are cautioned not to assume that all or any part of Measured or Indicated Mineral Resources will ever be converted into Mineral Reserves. United States investors are also cautioned not to assume that all or any part of an Inferred Mineral Resource exists, or is economically or legally mineable.

To see maps attached to this press release, please go to: http://files.newswire.ca/797/Yamana-Maps.doc

SOURCE Yamana Gold Inc.

Source: PR Newswire

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