Two deposits comprising gently dipping dolomitic sediments of the Skillogalee Dolomite were located during reconnaissance for construction materials for the Crystal Brook bypass. The southern deposit, 4 km northeast of Crystal Brook, was subsequently chosen for detailed evaluation. Two diamond drill holes totalling 78.35 m were drilled, and a quarry to yield 132 000 cubic metres of useable stone in situ has been outlined. This stone is interbedded with 31 500 cubic metres of shaly material and overlain by 29 500 cubic metres of overburden, some of which may be suitable for sub-base.