Vancouver-based African Queen Mines announced on Friday that it has now commenced its 2011 core drilling program covering approximately 3000m at its King Solomon Project, located north of Lake Cahorra Basa in western Tete Province, Mozambique. The project is the subject of the earn-in and joint venture with Switzerland's Opti Metal Trading, covering exploration, development and exploitation. African Queen has so far earned an interest of 51% in the project and may earn up to 85% by funding additional prescribed stages through feasibility. The company is exploring properties in Mozambique, Kenya and Ghana for gold and other metals and it is undertaking exploration in Botswana and Namibia for diamonds, gold and other metals – the licenses in Botswana comprise approximately 2890 sq km of diamond prospects.