The Kispiox C coal occurrence is located on the west bank of the Kispiox River, approximately 8 kilometres above the junction with the Skeena River.

Host rocks are folded and deformed shales, greywackes and conglomerates of the Lower Cretaceous Kitsuns Creek Formation, Skeena Group.

A 90-centimetre coal seam was observed on the north limb of a faulted anticline, and a second, 60-centimetre thick occurrence was observed on the east bank, slightly higher up. The strata are described as being badly disturbed from the occurrence area to the junction with the Skeena River.