VANCOUVER, BRITISH COLUMBIA, Sep 06, 2011 (MARKETWIRE via COMTEX News Network) --
Excelsior Mining Corp. (TSX VENTURE: MIN)(OTCQX: EXMGF)(PINK SHEETS: EXMGF)(FRANKFURT: 3XS) ("Excelsior") is pleased to announce results from two comprehensive hydrological tests conducted at the North Star Deposit. The results generated hydrological conductivities in the range expected for a fractured deposit and show the deposit is suitable for in-situ recovery (ISR). The North Star Deposit is part of the Gunnison Copper Property located within the copper porphyry belt in southern Arizona.
"We are very pleased with the results from this initial hydrological testing. We have successfully achieved another milestone in demonstrating suitable hydrological conditions for ISR at the North Star Deposit," says Stephen Twyerould, President and CEO of Excelsior. "These results will be combined with new metallurgical data to complete a Preliminary Economic Assessment expected later this year. Further hydrological and metallurgical testing will be carried out as we continue driving our Project towards production."
The North Star Deposit currently contains an indicated oxide copper resource of 3.21 billion pounds (511 million tons at 0.31% copper) and an additional inferred oxide copper resource of 0.88 billion pounds (159 million tons at 0.28% copper). For further details on the resource estimate, please see the news release dated July 19, 2011.