In 1909, a 0.6 metre wide seam of impure coal was reported on Tuchi River situated approximately 2.7 kilometres above its mouth at Babine Lake (see Paper 1986-5, Figure 1). No quality data are available and the occurrence has not been located since.

The area in which the occurrence was reported is underlain by Cretaceous to Tertiary stratified rocks comprised mainly of conglomerate, sandstone, mudstone, and minor coal. These rocks were reported as part of the Sustut Group (Geological Survey of Canada Open File 351 and Map 69-1) but are not referred to as part of the Late Cretaceous Skeena Group (Paper 1986-5).