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| | | | | Clarkson Hill PropertyNatrona County, Wyoming Extensive Drilling and a Resource Open to Expansion
Clarkson Hill is located on the southern edge of the Wind River Basin, 26 miles from Casper in Natrona County, Wyoming. Roll-front type uranium mineralization was discovered at Clarkson Hill during the 1950's, but the property was more extensively explored from the 1970's through the mid 80's. Most of this work was completed by Minerals Exploration Company, a subsidiary of Union Oil. Minerals Exploration and previous companies are reported to have drilled an estimated 383 holes, including 21 core holes, for a total of 124,565 feet. The drilling demonstrated continuity of the deposit, particularly along the mineralized trends. Vast Amount of Existing Data
Although Artha has not yet drilled the property, a significant amount of data was available as a result of previous drilling and exploration, including:
In the recent CLARKSON HILL URANIUM PROJECT MINERAL RESOURCE REPORT (43-101 compliant; October, 2007), BRS Inc estimated a new U3O8 inferred resource at Clarkson Hill. GT Minimum 0.10 0.25 0.50 Pounds U3O8 1,148,287 939,888 546,136 Tons 1,051,618 753,611 329,870
Average Grade
% U3O8 0.055 0.062 0.083 * Economics, mining method, and recovery will dictate the appropriate cutoff grade and/or GT to be applied to the in-the-ground resources. The 0.10 GT cutoff estimates were reported to assess the total resource. The 0.25 cutoff is more appropriate for in situ recovery, ISR, and/or conventional mining operations and is recommended for reporting purposes. The 0.50 GT cutoff was employed to highlight the areas of strongest mineralization. |
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