Ross River Minerals Inc

New Porphyry Discovery at El Pulpo

    Vancouver, Canada (ots/PRNewswire) - Ross River Minerals Inc. (TSX-V: RRM) (the "Company") is pleased to  report that while investigating a high-grade copper vein occurrence two  kilometres southeast of its Cerro Colorado copper-gold porphyry target on  Ross River's El Pulpo property, geologists have discovered new porphyry- style copper mineralization occurring in deep arroyos cutting through a  potassicaly altered phase of intrusive rock of the Sinaloa batholith. The  mineralization exposed in arroyos consists of chalcopyrite or leached  equivalents occurring in stockwork veinlets and disseminations extending at  least 30 metres vertically below the shallow-dipping quartz veins.  Mineralization has been encountered over an area of approximately 750  metres in a north-south direction by 850 metres in an east-west direction  and is open in all directions. This new area, named the Minitas prospect,  is over 1,000 metres east of the 2004 surveyed grid and is included in the easterly extension of the soil geochemical and geophysical survey currently  being conducted. Soil geochemistry on 200 metre spaced grid lines over the  Minitas prospect has recently been completed and shipped for analyses. In  addition 213 rock samples have also been shipped for analyses. Induced  Polarization (I.P.) geophysics over the area is scheduled shortly.

    In the western part of the El Pulpo Property, I.P. geophysics has closed off the anomaly near the village of Vado Hondo to the west and east.  This chargeability anomaly which ranges from over 7 milliseconds at the  western extremity increases in size and strength to over 10 milliseconds  800 metres to the east where it merges into the anomalous zone encountered  in 2004 east of Vado Hondo, ranging from 10 to over 28 milliseconds at N( equal sign)6 (approximately 150 metres depth). This zone is 600 metres wide  in a north-south direction. Within the newly surveyed area chargeability  values at N(equal sign)4 (corresponding to about 100 metres depth) greater than 15 milliseconds outline an area 600 metres in a north-south direction  and up to 350 metres wide in an east-west direction.

    Some of the higher I.P. anomalies extend to depth and are open and beyond the capacity of the current I.P. equipment in use. Ross River is  viewing alternatives to extend the depth range of the I.P. geophysics as  several anomalies including Cerro Colorado are open at depth. The 2005  exploration program is being carried out under the direction of James R.  Reeves M.Sc, P.Geo.

    To find out more about Ross River Minerals Inc. (TSX-V: RRM) visit our  website at


    Per: "Marcus Foster"


    Marcus N. Foster, President

    The TSX Venture Exchange has not reviewed and does not accept

    responsibility for the accuracy or the adequacy of this release.

ots Originaltext: Ross River Minerals Inc
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For further information: ROSS RIVER MINERALS INC., No. 1004 - 750
West Pender Street, Vancouver, BC V6C 2T7, Telephone:
+1-(604)-682-2770, Facsimile: +1-(604)-682-2331

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