Fimiston Open Pit
The selected mining method for the Fimiston Open Pit is a bench mining open pit method. The proposed open pit cutbacks will be mined using conventional open pit mining methods (drill, blast, load and haul) under an owner operator model, utilising 800t class excavators and 240t class trucks. This method is consistent with the current and historic mining method of the Fimiston Open Pit and is deemed appropriate given the proposed cutbacks are an extension of the current Fimiston Open Pit.
Open Pit Mining
Open pit make-over:
- Mining areas doubling from two to four:
- Golden Pike South - Underway
- Morrison (Fimiston South starter) - Underway
- OBH (Oroya Brownhill) - Underway
- Fimiston South - Underway
Open Pit Mining - Fimiston South:
- Two stages, Stage 1 underway
-12 year mine life
- 10:1 average strip ratio
- 850Mt total material movement
Open Pit Mining - Golden Pike
- High grades - Reserves 23Mt, 2.0g/t for 1.5Moz
- Low strip ratio of 1.6:1
- Waste pre-stripping completed in the preceding ~10 years by former owners
- Mining continues at the Golden Pike South cutback
- The Golden Pike North cutback will commence in FY24, once the East Wall remediation work is completed under the new Oroya Brownhill plan
Open Pit Mining - Oroya Brownhill (OBH)
- Mining underway, eight years of mining planned in two stages
- Average st ........
