A single coal seam, 1.2 metres thick, was mined from the Normandale mine at the eastern edge of the Merritt coal basin. The seam consists of high volatile bituminous B rank coal and occurs interbedded with shale and sandstone of the Eocene Coldwater Formation (Princeton Group). The seam strikes north and is close to vertically dipping. The underlying Triassic volcanics outcrop less than 30 metres east of the coal seam.

To the south of the Normandale area is Hamilton Creek where a northeast trending open syncline occurs in the eastern portion of the outcropping of coal-bearing strata.

See Merritt Coal (092ISE058).