Center Star Mine
Idaho County
GOLD
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Quartz Veins Pinch and Swell Throughout
• The Center Star Mine has over 4,000 feet of mine workings. Although these workings need repair, they provide an opportunity for lower cost access to the multiple ore bodies identified in historical geological reports which need to be verified.
• The Center Star Mine is believed to host high-grade gold mineralization that was first discovered in the early 1900s. The most recent substantial development work and production occurred in the 1980’s.
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Location, Access, and History
The Center Star Mine is located in Idaho, midway between Golden, Idaho and Elk City, Idaho in the Ten Mile Mining District.
Access to the property is gained by a paved state highway connecting Grangeville and Elk City. A good mountain road approximately 5 miles in length extends from the highway to the mine. The mountain road is of a sufficient quality to transport equipment and materials to the mine. The road is typically snowed-in during winter months but could be maintained to allow for year-round access. Water to the site is available from a year-round mountain stream that should be adequate to meet the properties’ needs.
The Center Star deposit was developed around 1915 as an underground mine. In the early 1930's, the well-known mining entrepreneur Harry Day and associates did additional exploration work which included the sinking of an incline winze at a depth of 150 feet. The War Powers Act Order L-208 forced the stoppage of operations in 1942. Over the years, work has been performed from time-to-time and historic data has been accumulated and organized.
Geology and Mineralization
The project is located in the Central Idaho Belt Series rocks and is in the Ten Mile Mining District. The mine area is composed of banded Pre-Cambrian Belt gneisses and schists. The general area has been faulted, and intrusions of granite dikes and hornblendite sills are prominent.
The ore is found as irregular and generally elongated bodies following faults which strike approximately N70E. A shear zone 100 feet wide, extending from about 240 feet in the Weiss tunnel, contains all the ore to be seen in the present workings. A series of faults parallel each other within this zone. The country rock surrounding the shear zone is composed of schist and gneiss. Intrusions of granite cutting the country rock are exposed in the Weiss tunnel. The schists and gneisses grade into silicified rock at the contact of the shear zone.
Drifting followed quartz veins which vary in thickness from one inch to ten feet, averaging about five feet. The quartz veins pinch and swell throughout their exposed length with alternating brecciation. Quartz is sometimes seen grading gradually into silicified wall rock where quartz veinlets may be observed extending into the wall rock. It is these veinlets that often contain sulfides and free gold.
Exploration and Plans
Past exploration, development, and production on the property has identified several ore bodies and targets for future exploration. Potential for additional mineralization is very good, as known veins and ore bodies appear to be open for expansion in all directions. We will use known mineralization areas from previous geological reports to identify exploration targets.
Geological mapping with rock sampling and assaying programs will focus on taking samples from rock exposures to test and verify historical assay reports. Successful completion of the mapping and sampling program will help guide a drilling program to better define past reported ore blocks and resource estimates.
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