Rimfire Pacific Mining (ASX: RIM) is sharpening both its ownership position and its geological understanding of the Fifield District in central New South Wales. The company has confirmed it will move to a 60% interest in the Avondale Project after its exploration partner, Golden Plains Resources (GPR), gave notice of its intent to vest a 40% interest under the terms of the Avondale Earn-In Agreement. The move leaves Rimfire holding the majority stake and operational control