The Riverina trend is located 30 kilometres northwest of the Davyhurst Processing Plant and hosts the gold resources of Riverina, British Lion, Silver Tongue, Forehand, Sunraysia.
The project hosts a current gold endowment of 942koz, made up of published Mineral Resources of 11.7Mts @ 2.2g/t for 847k ounces and historical production of 96k ounces at a grade of 2.6g/t.
Recent mapping and data review on the Riverina trend has defined two separate mineralised trends – the Little Gem – Sunraysia trend and the Eastern Shear trend.
Significant shallow Aircore results have historically been returned along both trends with the Little Gem – Sunraysia trend most well drilled. In 2024 OBM completed the first test of primary bedrock gold beneath these results returning significant high grade intercepts of 22.7m @ 5.0 g/t and 10.9m @ 6.4g/t from distinct carbonate horizons.
The target carbonate units have been intersected along the entire length of drilling, confirming a continuous 5km strike between Little Gem and Sunraysia which remains open to the north and south and returning intersections including 7.0m @ 3.7g/t, 5.0m @ 4.8g/t and 8.8m @ 6.3g/t.
Drilling is current ongoing to grow the Little Gem orebody towards resource definition.
Riverina Mine
The Riverina portal was established in May 2023 with first ore produced in November 2023.
An intensive surface and underground drill program has confirmed a robust and continuous mineralised system expanding to 1,000 vertical metres, highlighting strong mineralised continuity and significant potential for future mine life extensions.
