Mariana Resources Limited is engaged in investment and exploration for minerals, mainly gold, silver and copper in Argentina and Chile. The Company operates in three segments: Argentina, which includes exploration activities in Argentina; Chile, which include exploration activities in Chile, and head office operations, which include support function provided to the Company from Guernsey and Australia, Canada, including early stage exploration opportunities. The Company�s principal property is the Las Calandrias Project located in the Deseado Massif region, Santa Cruz province in southern Argentina. Its Hochschild Joint Venture includes Amigos I and Amigos II and Hochschild�s San Augustin tenements. Sierra Blanca is Mariana�s second advancing silver-gold project , which is 100% owned. On February 24, 2012, it completed the purchase of the remaining interest in the 7,000 Ha Sierra Blanca Gold-Silver Project located in the Deseado Massif of the Santa Cruz Province.