Trading Symbol - NJMC
Stock Exchange - OTCBB

 
  press release new jersey mining
  June 23, 2008
  New Jersey Mining Company Stakes Giant Ledge Prospect
 
 

Kellogg, Idaho.  New Jersey Mining Company (NJMC: OTCBB) is pleased to announce that it has staked a gold-copper-lead or polymetallic prospect near Murray, Idaho. The new prospect known as the Giant Ledge is 5 kilometers southeasterly of the Company’s Golden Chest mine operation, and the Company’s claims cover an area of about 580 acres.

The Giant Ledge prospect has attracted previous exploration efforts due to the presence of a mineralized fault zone on the contact of an igneous intrusive and the Prichard formation. The gold-copper-lead mineralization appears to extend into the monzonite intrusive thus indicating a possibility of encountering large tonnages of mineralization that could be mined with bulk underground mining methods. Recent sampling by NJMC has also indicated that the property may have potential for tungsten and zinc.  

The Giant Ledge prospect was active in the 1920’s when a 122 meter deep shaft was sunk and about 450 meters of drift development was completed. A flotation mill was erected and a minor amount of production was achieved. A metallurgical sample taken from the shaft waste dump analyzed by Hercules Mining Company in 1937 assayed 0.69 grams per tonne (gpt) gold, 6 gpt silver, 1.7% lead, and 0.2% copper. Bunker Hill Mining Company examined and mapped the mine workings in the 1950’s. Sunshine Mining Company conducted exploration at the Giant Ledge in the mid-1980’s.

It came to the Company’s attention that lead isotope data from the Giant Ledge prospect shows the same age of mineralization as the Golden Chest mine and gold prospects in the Toboggan Project which Newmont Exploration is exploring under a joint venture agreement. NJMC has acquired data from previous exploration programs and the drill core from two holes drilled by Sunshine Mining Company in 1984. NJMC has re-logged the core and re-sampled the mineralized sections of core including sections that were previously unsampled.

The core samples taken by NJMC show a similar geochemical signature to the Golden Chest mine with anomalous gold, silver, lead, copper, zinc and tungsten values. The two intercepts were:

Hole 84-1: 4.6 meters grading 0.908 gpt gold and 0.24% base metals
Hole 84-2: 8.5 meters grading 0.291 gpt gold and 0.1% base metals

Examination of the previous exploration data also indicates a zoning of the Giant Ledge structure with higher gold values on the north and more base metal mineralization on the south. Exploration plans this season include magnetic and VLF surveys, soil sampling, and geologic mapping. Drilling would be conducted in the 2009 season.

New Jersey Mining Company is involved in exploring for and developing gold, silver and base metal resources in the Coeur d'Alene Mining District of northern Idaho. The Company has a portfolio of mineral properties in the Coeur d'Alene Mining District including the Toboggan Project which is a gold exploration joint venture with Newmont, the Niagara copper-silver deposit, the Golden Chest project, the New Jersey mine, and the Silver Strand mine.

This release contains certain forward-looking statements within the meaning of the Federal Securities Laws. Such statements are based on assumptions that the Company believes are reasonable but which are subject to a wide range of uncertainties and business risks. Factors that could cause actual results to differ from those anticipated are discussed in the Company's periodic filings with the Securities and Exchange Commission, (www.sec.gov) including its annual report on Form 10-KSB for the year ended December 31, 2007.

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Further information about New Jersey Mining Company and it’s properties can be found at the company's website at www.newjerseymining.com or reviewed on the website of the Securities and Exchange Commission at www.sec.gov.
  
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 Contact:
Grant Brackebusch, Vice President
Phone: (208) 783-1032
E-mail: ir@newjerseymining.com
Website: www.newjerseymining.com
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