Anthracite coal is exposed at Coal Creek and Slatechuck Creek. The coal occurs in three seams, A, B, and C which are 1.8 metres, 1.7 metres, and 1.5 metres thick respectively. The seams consist of alternating dull, crushed coal, shale, and anthracitic, black hard coal, with coal constituting approximately 50 to 75 per cent of the seam. The seams may be fault or fold repeats of a single seam or horizon.

The coal is discontinuous and occurs in streaks and lenticles within a soft black carbonaceous shale of an unnamed shale unit of Lower Eocene to Lower Oligocene age (Unit Tsh, Geological Survey of Canada Paper 90-10, pages 31 to 50, Figure 9). Analyses of the coal indicate volatile matter contents ranging from 2.3 to 6.85 per cent, fixed carbon 57.23 to 90.8 per cent, ash 3.1 per cent to 29.49 (generally approximately 21 per cent), and sulphur 0.20 to 0.45 per cent. The coal has been metamorphosed by dikes, sills and other volcanics.

The seams have been locally intensely folded and faulted. The degree of disturbance appears to decrease northwards towards Slatechuck Creek.

In 1912 an adit was driven for 222 metres across the coal measures by The British Pacific Coal Company, Limited. Reserves were estimated at 3,300,000 long tons. A 1912 sample was analyzed to contain water, 6.85 per cent; volatile matter, 5.43 per cent; fixed carbon, 66.32 per cent; ash, 21.40 per cent; sulphur, 0.20 per cent.

The brilliant hard, anthracitic looking material was analyzed to contain water, 2.3 per cent; volatile matter, 3.8 per cent; fixed carbon, 90.8 per cent; ash, 3.1 per cent.

A preliminary estimate of probable mineable reserves by Mackay for the Royal Commission on Coal, in 1946, was 10,160,500 tonnes.