The Omineca River placer occurrence is located on the western edge of the Omineca Belt approximately 200 kilometres northwest of Fort St. James.

Placer gold is hosted in unconsolidated gravels along the Omineca River, downstream from the junction with the Osilinka River. There is no recorded recovery, but old workings are reported on bars and alluvial benches. The underlying bedrock consists of Neoproterozoic Ingenika Group (Swannell Formation) generally composed of argillite, greywacke, wacke and conglomerate turbidites.