Big It is a historic underground mine that was investigated in the 1950’s under a Defense Minerals Exploration Act contract as potential supplier of two critical metals, tungsten and antimony. Modern channel sampling underground has recorded mineralized intercepts of up to 19.5% antimony, 0.3% tungsten, and 10.9 g/t gold. The primary stratigraphy exposed in the Pine Creek area is the Prichard Formation, a deep-water sediment package that makes up the bottom half of the Belt Supergroup in Idaho. The Prichard is also exposed in the nearby Murray district which has produced significant placer gold and currently hosts the only operating commercial gold mine in Idaho called the Golden Chest Mine. Mines in the Murray District, including the Golden Chest, also produce tungsten as a by-product of gold mining.

 

The project is a shear zone hosted mesothermal type project, similar to most other mines

in the Silver Valley, but unlike the mines hosted at different stratigraphic levels which are primarily silver-lead-zinc, it shares a gold-tungsten mineralogy more similar to the Prichard hosted deposits like seen at Murray. There is one primary shear zone which hosts lenses of mineralized vein quartz that has been historically mined and explored, and whose workings are still open and accessible. From the underground workings there is a drift that was driven east that intercepted a separate gold-rich vein that is has a different orientation. These two structures, when projected downwards, should intersect at a depth of less than 300 feet.