Pitchstone options Dome uranium property to Rio Tinto

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Sept. 29, 2011) - Pitchstone Exploration Ltd. (TSX VENTURE:PXP) ("Pitchstone") announces that it has agreed to option its share of the Dome Property in the Erongo region of Namibia to Rio Tinto Mining and Exploration Limited (Rio Tinto)....