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Introduction
The Crackingstone property consists of four mineral claims totaling 10,665 hectares. It is located in northern Saskatchewan near Uranium City, adjacent to the north rim of the Athabasca Basin. JNR Resources holds a 100% unencumbered interest in the property.
The claims were staked to cover the unconformity between the Precambrian Tazin Group and the overlying Martin Group, as well as two major structures: the northeast-trending Black Bay and Jug Bay faults.
Previous Work
Historic work in the area dates back to the 1950's. From 1953 to 1982, sixteen deposits were brought into production in the Uranium City area, with total output on the order of 25,000 tons of uranium. The mineralization occurred as pitchblende veins and disseminations, mainly in fractures in the Tazin Group, although veins also occurred in the basal units of the Martin Group. Exploration programs focused on drilling surface showings discovered mainly by prospecting and radiometric surveys. There was no significance attributed to, and no exploration testing the unconformity between the two Groups.
Previous work on the Crackingstone property was carried out in the 1950's and 1960's, largely on the two southern claims that cover the Crackingstone Peninsula. During that time period the Gulch deposit and about 12 uranium showings were discovered. Underground development was initiated on the Gulch mine in 1955. An adit was driven into the base of the Black Bay Fault scarp and an internal shaft was sunk. Over 5,400 feet of lateral workings were developed on three levels; the 500-, 650- and 850-foot levels and 35,000 feet of underground drilling was completed. Although numerous pitchblende-bearing zones were identified, the deposit was considered to be sub-economic.
A number of reserve estimates have been published for the Gulch deposit, none of which follow the prescribed terminology of NI 43-101. The most recent, a 1975 estimate by Gulch Mines Inc., reported "drill-indicated reserves" of 201,000 tons grading 0.09% U3O8 (0.05% cut-off) and "possible reserves" of 315,000 tons at a similar grade (Source: Mineral Bulletin MR213, June 1986, Energy, Mines and Resources, Canada). JNR believes the estimate to be relevant information but has not completed work necessary to verify its reliability. As a historical estimate it should not be relied on.
JNR has received the results from 3,758-km high-resolution gradient magnetic Goldak survey flown in the fall of 2007. These results have been incorporated with prior ground and/or airborne geophysical surveys to better define targets for drill testing.
Thirteen 'zones of interest' have been identified and reflect an assortment of EM responses within a variety of magnetic and geological environments. They include areas along regional conductors where the conductor is disrupted by interpreted magnetic structures or are present as a locally stronger response. Isolated conductors chosen from a variety of geophysical and geologic settings are also considered high priority targets. Planning of additional work is underway.
Quality Assurance / Quality Control
JNR's Vice-President Exploration, David L. Billard, PGeo, is the Qualified Person for the Company's Athabasca Basin uranium projects. All technical information for the projects is obtained and reported under a formal quality assurance and quality control (QA/QC) program, details of which are presented in the PDF link below.
 Quality Assurance & Quality Control Program
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