is pleased to announce that today it has filed a National Instrument (NI) 43-101 Technical Report dated August 31, 2011 on SEDAR at www.sedar.com. The Report is with respect to Excelsior's resource estimate on the North Star Deposit, announced in a July 19, 2011 press release. " /> is pleased to announce that today it has filed a National Instrument (NI) 43-101 Technical Report dated August 31, 2011 on SEDAR at www.sedar.com. The Report is with respect to Excelsior's resource estimate on the North Star Deposit, announced in a July 19, 2011 press release. " /> Excelsior Files Technical Report for Indicated Resource of 3.2 Billion Pounds Oxide Copper at North Star - MINING.COM

Excelsior Files Technical Report for Indicated Resource of 3.2 Billion Pounds Oxide Copper at North Star

VANCOUVER, BRITISH COLUMBIA–(Marketwire – Sept. 1, 2011) – Excelsior Mining Corp. (TSX VENTURE:MIN)(OTCQX:EXMGF)(PINK SHEETS:EXMGF)(FRANKFURT:3XS) (“Excelsior”) is pleased to announce that today it has filed a National Instrument (NI) 43-101 Technical Report dated August 31, 2011 on SEDAR at www.sedar.com. The Report is with respect to Excelsior’s resource estimate on the North Star Deposit, announced in a July 19, 2011 press release. The Report confirms no changes in the resource estimate from the July 19th release, which stated an indicated oxide copper (Cu) resource of 3.21 billion pounds (511 million tons at 0.31% Cu) and an additional inferred resource of 0.88 billion pounds Cu (159 million tons at 0.28% Cu) for the North Star Deposit. Refer to the Report for further details on the resource estimate. The North Star Deposit is part of the Gunnison Copper Property located within the copper porphyry belt in southern Arizona.

 

Excelsior’s exploration work on the Gunnison Property is supervised by Stephen Twyerould, Fellow of AUSIMM, President and CEO of Excelsior and a Qualified Person as defined by NI 43-101. Mr. Twyerould has reviewed and approved the technical information contained in this news release.

About Excelsior

Excelsior is an exploration and development company with a copper project located within the copper porphyry belt of Arizona. The Gunnison Copper Project is located close to the required infrastructure and with its in-situ recovery potential, is intended for near-term production. The Excelsior team consists of experienced professionals with proven track records of advancing projects towards production.

Further details about Excelsior can be found at: http://www.excelsiormining.com.