Limestone is exposed for 366 metres along a north trending bluff up to 90 metres high between the John Hart highway (Highway 97) and the Westcoast Transmission pipeline, just north of Redrocky Creek, 80 kilometers north of Prince George. The deposit lies near the north end of a 25-kilometre long northwest trending fault-bounded band of limestone with minor dolomite and quartzite of the Upper Ordovician to Middle Silurian Sandpile Group. The band varies up to 4 kilo- metres in width. Banding (bedding ?) at the bluff strikes northwest and dips gently northeast.
The limestone is comprised of numerous rounded and ellipsoidal nodules 1 to 10 millimetres in diameter of secondary origin in a fine-grained dark grey to black matrix displaying oolites and pisolites in thin section. The nodules are composed of calcite with minor dolomite and iron oxide. The limestone is well fractured and cut by abundant white calcite stringers. Occasional grains of quartz and pyrite are present. A sample composed of chips taken at 3.0 metre intervals for 183 metres across the base of the bluff contained 53.82 per cent CaO, 0.38 per cent MgO, 2.80 per cent insolubles, 0.36 per cent R2O3, 0.21 per cent Fe2O3, 0.005 per cent MnO, 0.03 per cent P2O5, 0.02 per cent sulphur and 42.61 per cent ignition loss (Annual Report 1957, p. 86). Reserves are estimated at 9,100,000 tonnes with the following range in composition: 52.5 - 53.8 per cent CaO, 0.4 - 0.8 per cent MgO, 1.5 - 2.0 per cent insolubles and 1.0 - 1.4 per cent Fe2O3 + Al2O3 (L.T. Jory, 1972).
This deposit was assessed by Calox Industries in the late 1960's and early 1970's. A small amount of limestone was quarried by the company in 1968. The deposit was further developed by Tri-Lime Resources. Production began in 1983, continued for only a short while, and by September 1983 the company was in receivership. No production figures are available.