 
 The Pampa Uranium project consists of nine exploration concessions covering 53,969 hectares (208 square miles) in Chubut province located 40 to 80 kilometers southwest of the Cerro Solo uranium deposit owned by CNEA. The Cerro Solo deposit has a resource of 4600 tonnes (10 million pounds) U and 1500 tonnes (3.3 million pounds) of molybdenum at a grade of 0.30 % U and 0.20 % molybdenum (CNEA Report 1997). Uranium mineralization at Cerro Solo is hosted within the Los Adobes Formation in coarse-grained sandstones and conglomerate units representing paleo river channels. The deposit, which lies at a depth of 50 to 70 meters below the surface, was discovered by drilling along strike from two small shallower deposits mined in the 1970's that were associated with radiometric anomalies.
The Pampa Uranium project area covers airborne uranium radiometric anomalies, similar in size and strength to the anomaly associated with the Cerro Solo uranium deposit, in mapped outcrop areas of the same Los Adobes Formation.
Portal's uranium exploration efforts in Chubut Province consist of 12 separate claims covering 320 square miles called "the La Pampa Uranium Project".
Within the project area several strong airborne uranium radiometric anomalies and exposures of sandstones and conglomerate units are present along a north south
trending portion of the Los Adobes Formation 45 kilometers long by 15 kilometers wide. (Portal News Release Number 07-06, March 7, 2007)
La Pampa Uranium Project, Argentina
Cerro Solo Basin Claims - Paleo-Channel Trends
Portal recently signed an agreement to earn a 60% interest in the Cerro Solo Basin Project of Consolidated Pacific Bay Minerals Ltd. The project located within the San Jorge Gulf basin in central Chubut province in southern Argentina consists of three adjoining concessions totaling 30,000 hectares or 115 square miles.
Portal’s joint venture with Consolidated Pacific Bay Minerals further establishes Portal as a serious uranium explorer with over 400 square miles of prime exploration land in close proximity to, or surrounding, large uranium deposits.
"Portal is excited to have been able to assemble these large concession areas with the potential to host important new uranium discoveries" states Bruce Winfield, President of Portal Resources.
Initial prospecting within one of Portal's nine concessions has identified an area believed to be underlain by the Los Adobes and Cerro Barcino Formations. Mapping of this target area shows a thicker section of coarse sandstone and pebble conglomerate which is typical of the more favorable parts of the Los Adobes Formation to host uranium mineralization. Additionally prospecting with a spectrometer has identified anomalous or above background radiometric values in the same zone.
Portal is encouraged by the initial success of its prospecting program on this area. Next week a detailed ground radiometric survey will commence to determine the size of the area of interest and conduct detailed mapping to determine the thickness and stratigraphic position of the sandstone and pebble conglomerate within the sedimentary sequence.
Phase I exploration
Phase I exploration, budgeted at US$400,000 has begun on the Tiger and La Pampa uranium projects. Exploration consists of mapping, sampling, surface radiometric spectrometer surveys and initiating permitting for up to 150 wide spaced drill holes. Phase II exploration will consist of approximately 20,000 - 25,000 meters of percussion or reverse circulation drilling to test the most favorable target areas.
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