Rock types mapped in the above area include arkosic ortho quartzites, arkosic sandstones and chloritic quartzite schists of the Stonyfell Quartzite formation in the Torrensian Series. Total available reserves of rock are estimated at over thirty million cubic yards; of this total an estimated 6.3% would be quartzite; 6.32% sandstone; 93.3% chloritic quartzite schist. Folding and faulting has had little effect on the quality of the stone, but combined with topography, has, in places, increased the overburden ration considerably.