Tonkin Springs Mine

Data as of Aug 01, 2014 02:47PM UTC
Data as of Aug 01, 2014 02:47PM UTC

Key Facts
Status: Past Producer
Type of Work: Open-Pit
Location: Nevada, United States
                 77 km NW of Eureka

Commodities: Silver, Gold
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Latest Information
August 6, 2008
Two prospective areas have been outlined. The first target area is located along a major north-northwest structure on the west side of the property. The second target area is situated near the eastern edge of the mineral resource. Geophysics over the western target has identified four potential hydrothermal systems. Inaddition, Phase two metallurgical test work has begun at Tonkin.
June 3, 2008
A clarification of the May 20/08 resource estimate was announced. Measured and Indicated resources have increased to 1,447,000 ounces of gold at a grade of 1.40 g/t from 1,266,000 ounces of gold at a grade of 1.47 g/t, while Inferred resources have increased to 311,000 ounces of gold at a grade of 1.13 g/t from 153,000 ounces of gold at a grade of 1.51 g/t. In addition to increasing the size of the estimated resource and outlining expansion areas, exploration has successfully increased the confidence level in grade and continuity of mineralization. This is highlighted by a 366% increase (820,000 gold ounces versus 176,000 gold ounces) in the total ounces within the measured category. The mineral resource estimate is comprised of three separate deposits referred to as North, Central and South. In addition, preliminary metallurgical studies using Newmont Mining's N2TEC patented technology have demonstrated encouraging gold recoveries, significantly enhancing the project's potential.
December 31, 2007
Drilling results from 2007 in the Mine Corridor are expected to modestly expand estimated mineralization in the Complex, with an updated independent engineering study currently underway and scheduled to be completed during the first half of 2008.

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