ROCA – Drilling Intersects New Molybdenum Zone at MAX and Drilling Commences at Foremore VMS-Gold Project

    ROK: TSX.V



    VANCOUVER, Aug. 12 /EMWNews/ - Roca Mines Inc. (ROK:

TSX-V) ("Roca" or "the Company") reports that a possible new molybdenum

system has been discovered in close proximity to the recently completed

Adit #2 at the MAX Molybdenum Mine.



    Drilling targeted a molybdenum biogeochemical anomaly with a surface

footprint of 150 metres (m) X 350 m and centered approximately 200 m north

of Adit #2. Two initial holes intersected a wide zone (over 100 m) of

intense silicification, hornfelsing, locally strong quartz veining and

pervasive sericite alteration with trace molybdenite throughout. Further

diamond drilling is planned from the Adit #2 area to test for a separate

molybdenum deposit on the east side of the Z Fault, or a faulted extension

of the MAX deposit itself.



    While economically significant molybdenum values were not intersected

the geologic and near-surface expression of this new zone is reminiscent of

the MAX resource itself where the extent of a relatively minor molybdenite

mineralized zone on surface lies atop a large-scale mineralized deposit

currently being mined.



    The anomaly was identified during a survey funded and conducted by the

Geological Survey of Canada's (GSC) Targeted Geoscience Initiative - 3

(TGI-3) in late 2007. This anomaly was not previously identified because it

lies beyond the historical limits of a soil-sampling grid and in an area

without previous drilling. A second geochemical anomaly was also discovered

approximately 350m southeast of the MAX deposit and a soil-sampling grid

will be established at that location to further define that target before

drilling.



    Sampling and logging of the drill holes was conducted under the

supervision of David Melling, P.Geo., a qualified person as defined by

NI43-101. The sampling program included quality control procedures, in

addition to internal quality control at the assay laboratory, ACME

Analytical of Vancouver, BC an ISO 9001:2000 accredited laboratory.



    Foremore Drilling Commences



    The Foremore VMS-Gold (volcanogenic-massive-sulphide/gold) project is

located in northwestern British Columbia, 45 kilometres north of Barrick

Gold's Eskay Creek mine and 45 kilometers west of Hwy 37, mid-distance

along the road route to the large-scale Galore Creek project, being

developed by NovaGold Resources Inc. and Teck Cominco Ltd. Construction is

currently underway on the access road, which passes within 500 m of Roca's

camp.



    Roca has previously completed prospecting, mapping, drilling and an

airborne survey of parts of the 100% owned property. Interpretation of the

airborne survey and all previous exploration data has led to the

identification of a number of priority drill targets at several locations

on the property, including the North More Creek VMS corridor, and the

Hanging Valley / SBF area.



    North More Creek VMS Corridor



    At the Ryder Area, VMS mineralization occurs as bands of massive

sulphide within a large envelope of intense alteration (including sodium

depletion), and massive sulphide mineralization in a thick (+200m) rhyolite

sequence below a basalt contact. Compilation of data from widely spaced

drill holes indicate that the mineralization/alteration is localized along

a NE-SW trend, traced over 1 km strike length, and open with grades

increasing to the SW. Initial drilling will include step outs from previous

massive sulphide intersections along this corridor.



    At the BRT area, three-dimensional modeling of drill hole data

indicates that the gold & silver enriched massive sulphides, hosted in

altered basalt above the More Creek rhyolite, occur in a flattened pipe

like body that is open to depth below hole 03-04 (2.1m @ 22.8g/t Au,

1,561g/t Ag, 9.3%Pb/Zn, and hole 03-11 (4.3g/t Au, 56g/t Ag). Further

drilling is planned to test this zone down plunge.



    Hanging Valley / SBF Area:



    The South Boulder Field (SBF) is comprised of banded massive sulphide &

magnetite boulders, many of which are angular, up to 2 metres in size and

characterized by intense ankerite/dolomite alteration. In excess of 800

massive sulphide boulders were originally discovered by Cominco in the late

1980s. Cominco's assay results of 53 mineralized boulders at this location

averaged 9.4 per cent zinc (Zn), 1.7 per cent lead (Pb) and 102 grams per

tonne (g/t) silver (Ag). These results are reported in a 43-101 compliant

technical report on the Foremore project prepared by W.A. Sandy Sears,

P.Geo., and John J. Watkins, P.Geo., dated April, 2005.



    Helicopter Airborne Magnetic surveys show several distinct anomalies,

including one with a coincident multi element soil geochemical anomaly, in

an area with very limited outcrop exposure and located immediately up-ice

from the boulder fields. Geological mapping has identified lithologies and

alteration similar to that hosting the massive sulphide boulders, and a

detailed Induced Polarization survey is now in progress to further refine

targets for drilling this year.



    Scott Broughton, P.Eng. is the qualified person responsible for the

preparation of this news release.






                               ROCA MINES INC.

                              "Scott Broughton"

                ----------------------------------------------

                 Scott E. Broughton, P.Eng. - President & CEO





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