ROCA Plans New Drilling Program at Nuevo Milenio Gold/Silver Project



    ROK: TSX.V

    VANCOUVER, Sept. 10 /CNW/ - Roca Mines Inc. (ROK: TSX-V) ("Roca" or "the
Company") announces that it has recently completed a recent geological review
and program-planning visit to the Nuevo Milenio Gold/Silver project.
    The work included a comprehensive review of past drill sites, trenches,
Spanish-era workings, new mapping by Cream Minerals ("CMA") and re-logging of
eight diamond drill holes. The work took place in late August 2009 and was
conducted by Mr. Robert Lane, P.Geo., Mr. Luis Igreda, P.Geo and Mr. Paul
Albers. Field reports have now been received that confirm the potential and
geological opportunities at Nuevo Milenio:

    
    -   The known mineralized system at the Veta Tomas, Dos Hornos and Once
        Bocas Zones extends over a five kilometer strike length and includes
        an extensive low-sulphidation epithermal area contained within a
        Miocene age caldera;
    -   Re-logging of core confirms that past drilling resulted in poor core
        recovery (as low as 20%) in many high-grade zones and that free gold
        and silver grades would be additionally impaired by poor drilling
        techniques;
    -   High-grade intervals correspond with areas of discrete quartz veining
        and dense stockwork and/or sheeted veins;
    -   Highest silver values are associated with colliform banded quartz
        veins that include fine grained acanthite and other silver-bearing
        minerals with very fine grained disseminated pyrite; and,
    -   The property-wide review highlights the untested exploration
        potential at targets not included in the current resource estimate.
    

    The geological team has recommended a new diamond drill program be
undertaken to provide confirmation of selected drillholes for direct
comparison to grades in zones of known poor recovery. Initially these will
include twinning diamond drill holes DDH02-06, DDH07-23, DDH06-03 (or
DDH03-12) and possibly DDH 01-06 and DDH07-32. It is anticipated that
significantly improved drilling techniques will enhance core recovery and will
capture previously unrecorded free gold and silver possibly resulting in much
improved drill assay results. In part, the objective of the program is to
reconcile the wide differences in CMA drill assay results versus much higher
underground channel sample assays particularly in respect to gold values. To
facilitate this program, roads and ditches will be improved to provide access
to various parts of the property.
    Other geological tasks to be undertaken include; a review of assays,
extending the sampling of existing core to test bulk tonnage potential,
mapping and examining zones for extensions to the NW under basalt caps and to
the SE under rhyolite caps and re-logging and re-sampling core on shorter
sample intervals.
    Following successful completion of the confirmation program, a Phase 2
exploration drilling program will be conducted with up to 25 new diamond drill
holes to test extensions of mineralized zones at depth. Many of these new
holes will utilize the existing drill setups and access established at the
site. Roca will also advance plans for an underground bulk-sampling program.
    Through an option agreement announced previously, Roca has a right to
acquire up to a 70% interest in CMA's Nuevo Milenio Gold/Silver Project. The
Nuevo Milenio Project encompasses 2,560 Hectares (Ha) and is located 27
kilometres (km) by road from Tepic, the capital city of Nayarit State, Mexico.
Tepic is an important commercial centre with a population of over 300,000
people located 150 km northeast of Puerto Vallarta. Access to railway,
airport, power lines and water are within reasonable distance of the Nuevo
Milenio Project providing cost effective access to infrastructure.
    Scott E. Broughton, P.Eng, is the qualified person responsible for the
technical content of this news release under National Instrument 43-101.

    
                               ROCA MINES INC.

                              "Scott Broughton"

              -------------------------------------------------
              Scott Broughton, P.Geo. - Chief Executive Officer

       The TSX Venture Exchange does not accept responsibility for the
                    adequacy or accuracy of this release.
    

    %SEDAR: 00018660E




For further information:

For further information: Investor Relations, Tel: (604) 684-2900, Fax:
(604) 684-2902, Email: info@rocamines.com, Web: www.rocamines.com

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