 |
Stanley Uranium District Project
| Location: |
Custer County, Idaho |
| Property Position: |
129 Lode Mining Claims |
| Ownership: |
100% |
| Grades: |
0.18% - 15.0% |
| Comments: |
Historical reported production from 4 pits and one underground mine. |
Magnum's Stanley Uranium District Project lies just northeast of Basin Creek, approximately 6 miles northeast of the small rural community of Stanley in west-central Custer County, Idaho. The 3.5 square-mile project area is located in the historic Stanley Uranium District and covers a five-mile-long by one-half mile to one-mile wide, northwest-trending belt of favorable geology that contains all of the District's known sandstone-hosted uranium mineralization and past producing deposits. Uranium mineralization is associated with carbonaceous fluvial arkosic sandstone and conglomerate of the Eocene Challis Volcanics that fill paleo stream channels eroded into underlying granitic rocks of the Cretaceous Idaho Batholith. Magnum's claim position represents the first time the district has been combined into a single, coherent, and comprehensive unit for the purpose of exploring the bedded sandstone uranium mineralization on a district-wide basis.
Uranium was mined in the Stanley District on a piecemeal basis from 1958 to 1960, during which time some 7,000 tons of ore averaging 0.18% U3O8 was shipped from the sandstone-hosted deposits. Reports describing the exploration, development, and mining of the individual producing properties indicate that all were explored near surface, generally not greater than 80 feet in depth, and all but one was exploited by open-pit methods. Ore was mined where it was easiest to extract, with much still remaining. Published data of over 300 holes drilled on these properties, as well as geological, analytical, and down-hole radioactivity survey data indicate that mineralization at all the properties is still open either along strike, down dip, or both, and that good potential remains for the discovery of much larger deposits.
Magnum Exploration Activities
Sampling of all of the major past producing sandstone-hosted properties and prospects in the district by Magnum geologists during the 2005 field season has returned encouraging assays ranging from 0.06% to 1.68% U3O8. Planned upcoming work includes flying a detailed helicopter-supported airborne radiometric survey of the trend of mineralization, conducting detailed geological mapping and air photo interpretation of the prospective area, and implementing a high-resolution seismic survey to help better define the paleo stream channels. Future planned drilling includes 8,500 feet of core to offset known open-ended intercepts and 16,000 feet of RC work to test new targets and concepts.
Maps & Photos
|  |
)
)
)
)
)
)
