Mount Charlotte is an underground gold mine located north of the golden mile.

Mount Charlotte produces 1,000,000 tonnes of ore per annum at a grade of 3.0 grams per tonne, yielding around 100,000 ounces of gold per year.

Small scale mining to a depth of approximately 130 metres commenced in the Mount Charlotte area in 1893 and continued intermittently until the mid 1930's. Gold Mines of Kalgoorlie commenced larger scale mining in 1962, using mechanised cut and fill method.

Access was via the Reward and Man and Supply Shafts. The discovery of extensions to the main ore bodies at depth in the early 1980's necessitated the sinking of a new shaft - the Cassidy Shaft Fig.1. Construction of the Cassidy Shaft was completed in 1986 to a depth of 1176m, the Sam Pearce Decline which provides access from the surface to the 900 level was completed in November 1997.

Geology of Mt. Charlotte

The Mt. Charlotte orebodies consist of Quartz Stockwork Au-Pyrite mineralisation hosted by Quartz-rich Archaen Dolerite.

There are two massive orebodies (Charlotte and Reward) bounded by the Charlotte Fault to the North, Maritana Fault to the south and Unit 8 boundaries East and West.

The Charlotte orebody extends from the surface to -1000mRL, 250m along strike(N-S) and 50-100m (E-W). The Reward orebody extends from the surface to –800mRL, 250m along strike(N-S) and 50m (E-W). Other satellite orebodies mined at Mt. Charlotte are the Maritana and the Northern.

Target grade is >3.0g/t with an expected monthly target of 5,000oz.

The Mt. Charlotte gold is associated with pyrite but is not refractory. Ore is ground in a SAG/Ball mill circuit and then extracted through CIL.