The Maybell Uranium Project is situated in a recognised historical uranium mining district in Colorado USA, with historical production of 5.3Mlbs of U3O8 (average grade, 1,300ppm).
Located in Colorado, 5km east of Maybell and 40km west of Craig, the project comprises 468 federal unpatented mining claims over 3,600 ha and covers a significant portion of the Maybell mineralised trend, which includes the area of historical production and other known mineralised occurrences and prospects.
Union Carbide operated a series of shallow open pits along a two-kilometre strike for an 11-year period between 1954 and 1964, producing 4.3Mlb U3O8 at an average grade of 1,300ppm U3O8 before resuming mining operations from 1976 until 1981, producing another 1.0Mlb U3O8.
Based on the historical production and exploration data there is significant potential for the further delineation and discovery of near surface uranium resources at Maybell.
The Maybell Uranium Project covers a large area that generally follows the outcrop of uranium-bearing tuffaceous sandstones of the Miocene age Browns Park Formation. Uranium is widespread in the Browns Park Formation, however, the most important ore deposits are in the upper sandstone unit which is composed of buff to grey, fine to medium grained sandstone. The sandstone unit varies in thickness from 60m to 300m and can host zones of uranium mineralisation up to, and potentially greater than, 30m thick. The underlying Wasatch formation, a host rock for uranium in Wyoming, is also present in the area and is known to contain uranium mineralisation. The physical characteristics of these permeable sandstones make them amenable for conventional heap leach processing, as well as potential candidates for ISR (In-situ Recovery) production.