Pena Grande Prospect

Bulk tonnage Polymetallic
69,321 Hectares - 100% Soltoro

Soltoro feels Peña Grande has the potential to host a Peñasquito type diatreme deposit.

Location: The Peña Grande Project is located in the central part of the State of San Luis Potosi (SLP), Mexico, in the municipalities of Villa Hidalgo and Guadalacazar, at an elevation of between 1500 and 2400 masl. It is accessed from the city of SLP (the capital city of SLP) by a paved highway 70 km north to the turn off to the town of El Peyote which is inside the claim and also reached by paved road. Additional dirt roads give good access to most of the claim and power lines cross in numerous places as well.

History: Numerous old mines are distributed across the property though little is known about them at this point. Regionally the property is located about 40km north of the Cerro San Pedro Cu-Au porphyry mine which is in production right now and about 50km SE of the Charcas Ag-Pb-Zn mine which has been in operation for many years. Also of note is the large mag high located just to the SE corner of the claim which is the Guadalacazar District. This district was found by the Spaniards and first mined for Hg and gold, then exploited for 200 years for silver and later zinc.

Geology: The area of the Peña Grande Project is located in the mesa central tectonostratigraphic terrain, a large plateau region in central Mexico with a weakly folded package of thick Cretaceous calcareous sediments, which has been intruded by various mafic to felsic intrusives. The main rock outcropping on the property is Lower Cretaceous limestone. Further details are un-available at this time.

Mineralization at the Peña Grande Project is not well understood at this time, though is thought to be an excellent environment for CRD and/or skarn mineralization and/or buried porphyry. It is felt that the Peña Grande property has the right characteristics to host a mineral rich diatreme Peñasquito style deposit, those characteristics being: a large buried intrusive, suitable overlying host rock preferably in the 1000m thick range (needed to host the diatreme), thin aluvium cover (so that the prospect has not been found before and so that it can be detected and tested) particularly out over the flanks of the mag feature/intrusion, numerous mineral prospects to indicate that the underlying intrusion has fraccionated and released metals, and minor magnetic features in the outer portions of the mag high to suggest separate intrusive events. Soltoro has determined an intrusive sub crops in the area of the southern large mag high surrounded by our claim and it is presumed that said intrusive will plunge to depth as it radiates outwards following the style of the mag feature. In June of 2009, a preliminary evaluation was completed which identified a number of non metallic (clays and marble) prospects within the Soltoro concession as well as locating a sizeable area of skarn alteration. Further work is needed to assess the size and potential of the skarn zone and to evaluate the alluvium covered valley.

Completed program: In July, 2010, a follow up mapping and sampling program was conducted over the central portion of the Peña Grande property. The initial assessment determined that much of the alluvium covered valley is underlain by variable amounts of fluvial and lacustrine sands and gravels overlain by wind deposited loess. As all three types of material are transported from some distance away a geochemical method was selected which has the potential to see through this transported material and detect anomalies related to the underlying bedrock. Biogeochemical sampling of mesquite branches was determined to be the most appropriate method for this area and 11 east-west lines were laid out to cross the alluvium covered valley. A total of 178 samples at a spacing of 250 metres were collected which covered a 15km long portion of the central part of the claim block. Results from this sampling program are still pending.

In September of 2010, the Company staked an additional 37,652 hectares to cover the large magnetic high in the district. The ground was previously held by a major.