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Winnemucca Mountain Property
The Winnemucca Mountain Property is located on the lower east flank of Winnemucca Mountain in Humboldt County, Nevada. Subject to third party net smelter returns royalties, the property is 100% controlled by Columbus Gold.
Geology
The property covers a large, north-trending, steeply east dipping range-front structure which is invaded by quartz-carbonate stockwork veining hosted in Triassic silt, shale, limestone and quartzite containing extensive low grade gold mineralization. The zone is often brecciated with local banded calcite replacement. With depth the gangue mineralogy changes to quartz/calcite and jasperoid. The vein/vein zone has a strike length of over 1,036.6 metres (3400 ft) and a width of well over 30.48 metres (100 ft) locally. Jasperoid bodies have been mapped to the east of the main structure suggesting a parallel structure. Cretaceous granodiorite intrudes the sedimentary rocks southwest of the rangefront structure.
Past Work
Widely-spaced drill holes by Santa Fe and others between 1985 and 1992 traced associated gold mineralization along the zone, with values to 0.86 g/t Au along 29 metres (0.02 opt along 95 ft) and 0.34 g/t Au along 72 metres (0.001 opt along 236 ft), for a strike length of nearly one kilometre (0.6 miles) and to a depth of up to 180 metres (590 ft). The geological environment and indicated gold grades at Winnemucca Mountain are similar to those characterizing the nearby Florida Canyon Mine which was discovered by Cordex in the 1970's. Florida Canyon produced over 2 million ounces of gold from a heap leach operation from 1986 to 2005.
Planned Program
Columbus Gold is actively seeking a joint venture partner for the Winnemucca Mountain Property.
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