At the Fernie prospect, at least thirteen coal seams of medium volatile bituminous rank are present in the Jurassic-Cretaceous Mist Mountain Formation (Kootenay Group) interbedded with shale, sandstone and siltstone. The seams range in thickness from 0.3 to 6.1 metres. Many of the seams contain shale bands or are argillaceous, however, a number of clean seams or parts of seams are present. The No. 0 seam (3.05 metres) is equivalent to the older No. 11 mine, and seams numbers 1 to 10 are named from stratigraphically older to younger. Seam numbers 3, 4, 5, 9, 10 and B have been extensively mined (1950). Analysis of coal samples indicate values ranging from 9.5 to 42.7 per cent ash, 17.9 to 27.1 per cent volatile matter, 29.1 to 71.2 per cent fixed carbon, and 0.3 to 0.5 per cent sulphur.
The structure in the area is dominated by the north trending (axis sinuous) McEvoy syncline. There are a number of north trending faults in the area including the west dipping Lookout thrust fault (Coal Creek area), the Pipeline normal fault, the Morrisey retro-thrust fault to the southwest and several other minor faults.
See Coal Creek (082GSE035) and Parcel 82 Flathead Ridge (082GSE023) for more details and work history.