The Pampa Buenos Aires prospect is located in Region II approximately 15 km southwest of the Meridian Gold’s El Peñón silver/gold mine. The 28,800 ha property is currently under option to Rusoro Mining Limited (“Rusoro”). Rusoro may earn a 50% interest in the property by spending $250,000 on exploration prior to June 30, 2008 and issuing 176,479 Rusoro common shares to Andina.

The property area has been subject to regional exploration by Newmont during the period 2001 to 2003. The work included magnetometer and hoistEM surveys plus regional stream sediment sampling. Encouraging anomalous stream sediment results were obtained from areas with no history of gold mineralization. The combination of known hydrothermal systems, anomalous, previously unknown occurrences of gold and the large area obscured by the gravel cover make Pampa Buenos Aires an attractive exploration target for epithermal gold and copper mineralization.

The Pampa Buenos Aires is a broad plain underlain primarily by andesitic volcanic rocks but mostly covered by alluvial gravels. A number of zones of hydrothermal alteration occur on the mineral concessions and one highly silicified zone on the southwest corner of the concession block has been mined in the past for silica used as flux in smelting operations. These silicified zones are indicative of the volcanic-hydrothermal and structural history of the area.