Radisson Mining Resources Inc. announced that it will expand the ongoing step-out exploration drill program at the O'Brien Gold Project to 140,000 metres utilizing up to eight drill rigs. The expanded program aims to build upon recent successes in delineating new high-grade gold mineralization outside the scope of the Project's current Mineral Resource Estimate ("MRE"). This will be the largest drill program in the history of the Project.
This drilling is accomplished with pilot holes followed by wedges and directional drilling to maximize drill efficiency. The first pilot hole drilled beneath the historic mine workings of the O'Brien mine intersected 31.24 g/t Au over 8.0 metres, including 242.0 g/t Au over 1.0 metre at approximately 1,500 metres vertical depth, 500 metres below the final mining stope. Assay results from 7 wedges from this pilot holes have now been reported and up to six high-grade, gold-bearing veins have been delineated over an area of approximately 250 metres (east-west) by 250 metres (vertical).
Assay results from additional wedges are expected shortly. Step-out drilling with wedge extensions has also confirmed high-grade mineralization 170 metres below the base of the existing mineral resources at Trend #1 and up to 300 metres below previous drill intercepts at Trend #2. By the end of 2025, Radisson expects to have completed approximately 35,000 metres of a 50-60,000 metre drill program originally announced in May 2025. With the new drilling announced, the total meters drilled in this ongoing step-out program will increase to 140,000 metres.
This will incorporate an expansion of site facilities and personnel to support up to 8 drill rigs from the current four. This MRE, effective as of May 6, 2025, is based on 325,509 metres of drilling completed to the end of 2022. By the end of the currently scheduled drill program a significant amount of new drilling will have been completed, the larger part being outside the scope of the current MRE and recent PEA mine design.
