VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 08/13/12 -- Riverstone Resources Inc. (TSX VENTURE: RVS)(OTCQX: RVREF)(FRANKFURT: 3RV) ("Riverstone" or the "Company") is pleased to report results from 14 diamond core ("DD") drill holes on the 100% owned Kao Deposit ("Kao"), which forms part of the Company's flagship Karma Gold Project in Burkina Faso, West Africa (the "Karma Project"). These holes are located in the
[...]