The proposal is to extend Pioneer's existing hard rock quarry, located three kilometres south-west of Byford, onto an adjoining lot (Lot 2279). The existing facilities would be retained and the rates of extraction would not be expected to change significantly.

The proposal is located in a region of forest covering the western edge of the Darling Scarp providing aesthetic and recreational land uses, and is in proximity to expanding urban population areas.

Work in the proposed extension would not begin until approximately the year 2000 when working of the existing quarry is expected to be completed. The quarry would then progressively move southwards in stages of about five hectares every ten years. This would give the quarry an expected life of 100 years based on similar rates of extraction to that currently operating.