Underground Mining at New Jersey Mine
New Jersey Mine
The New Jersey mine is located two miles east of Kellogg in north Idaho’s Coeur d’Alene Mining District. The property includes 62 acres of patented mining claims owned by the Company, mineral rights to 108 acres of fee land, and approximately 130 acres of unpatented mining claims. The property is adjacent to Interstate 90 and is accessible year-round. The New Jersey Mill is located on the property, providing a unique opportunity for small-scale production.
The area is underlain by argillites and quartzites of the Prichard Formation which commonly hosts gold mineralization. The property includes the gold bearing Coleman vein system along with the Scotch Thistle and at least 12 other gold prospects in or near the New Jersey mine area.
In the late-1800s and early-1900s more than 2,500 feet of development workings, including drifts, crosscuts, shafts, and raises, were driven by the New Jersey Mining and Milling Company (unrelated to NJMC) to develop the Coleman vein and its northwest branch. A 10 stamp gravity mill was built and operated for a short period.
Since 2001, NJMC has drilled 14 holes totaling 1,765 meters to explore the Coleman vein and associated gold zones. Drilling confirmed vein system continuity and resulted in the discovery of the broad, low grade (less than one gram per tonne (gpt)) Grenfel zone. The Company’s best intercept assayed 2.76 gpt gold over 12.5 meters including 6.80 gpt gold over 2.5 meters.
In 2008, the Company performed underground exploration on the Coleman vein at the 740 level, including 84 meters of drifting, with 20 meters along the vein before it was displaced by a fault. In 2010, a raise was driven upward on the 740 level to explore a narrow high-grade vein that crosscut the main Coleman vein. This raise was driven 12 meters vertically, leading to the extraction of 367 dry tonnes that assayed 2.68 gpt gold in processing at the New Jersey Mill.
The New Jersey Mine project is available for option or joint-venture with a qualified party.