The original leases making up today's North Kalgurli Mines were developed by independent companies on an ad hoc basis._x000D_
The major disadvantage which now arises is the varying levels of mining horizons. From Kalgurli Shaft in the south, through main Shaft and to Croesus Shaft in the north, there are three separate sets of levels._x000D_
work has commenced to link the three areas with either common levels or new development which will facilitate common access and haulage via Main Shaft._x000D_
Generally, the workings at North Kalgurli were established at the turn of the century. The introduction of techniques and equipment to bring the mine into the 20th Century has been difficult and slow. The general size of openings, a widespread workforce and complex ore distribution often make innovation and change more than a challenge.