Shirley Basin Mine Site
Shirley Basin, Wyoming
As a part of the Pathfinder acquisition, we now own the Shirley Basin and Lucky Mc mine sites in the Shirley Basin and Gas Hills mining districts of Wyoming, respectively, from which Pathfinder and its predecessors historically produced more than seventy-one million pounds of uranium, primarily from the 1960s through the 1990s. The Shirley Basin project is located in Carbon County, Wyoming, approximately 40 miles south of Casper, Wyoming. Conventional mine operations were suspended by Pathfinder in the 1990s due to low uranium pricing.
Acquired Historic Geologic, Engineering and Operational Data Has Allowed for Easier Transition to Mineral Resource Estimates, and Obtaining Permits and Licenses – We Are Construction Ready
Together with property holdings of patented lands, unpatented mining claims, and private leases totaling nearly 3,700 acres (~1,500 hectares) at Shirley Basin, we also acquired all historic geologic, engineering and operational data related to the mine area.
We filed an Initial Assessment Technical Report Summary on Shirley Basin ISR Uranium Project, Carbon County Wyoming (the “Shirley Basin Report,” as amended, September 19, 2022). Based upon data from the historical and confirmation drilling at the site, the Shirley Basin Report confirms the project’s mineral resource estimate of 8.8 million pounds eU3O8 in the Measured and Indicated categories, of which approximately 6.4 million pounds are expected to be recovered. Due to the very high level of density in drilling at the project, all resources within the three proposed mine units are classified as Measured or Indicated. There are no resources in the Inferred category.
All major permits for the Shirley Basin Project, including the BLM Plan of Operations, Land Quality Division Permit to Mine and associated aquifer exemption, and Uranium Recovery Program License have been received. Additional minor projects are ongoing to ensure the project is construction ready.
The tailings facility at the Shirley Basin site is one of the few remaining facilities in the United States that is licensed to receive and dispose of byproduct waste material from other in situ uranium mines. We assumed the operation of the byproduct disposal site and continue to accept deliveries under several contracts.