The Mount Geodfrey occurrence is located in the Skeena Mountains, in the southwest of the Groundhog coalfield in the Bowser Basin. The coal showing was identified, trenched (Trench BB89016) and sampled by Dawson and Ryan in 1989 and is located on an alpine ridge 2.5 kilometres north of the peak of Mount Geodfrey, approximately 163 kilometres northeast of the community of Stewart (Geological Survey of Canada Open File 2555).

The Mount Geodfrey coal showing is hosted by the Lower Cretaceous Groundhog-Gunanoot assemblage of the Upper Jurassic-Lower Cretaceous Bowser Lake Group. The Groundhog-Gunanoot is a deltaic assemblage consisting of sandstone, siltstone, calcareous and carbonaceous mudstone, minor conglomerate and coal (Geological Survey of Canada Bulletin 577). The strata at the Mount Geodfrey occurrence are tightly folded into closely spaced anticline-syncline pairs. Axial planes are folded, demonstrating that there are at least two phases of deformation (Geological Survey of Canada Open File 5571). The coal at the Mount Geodfrey showing is at least 50 centimetres thick and has a vitrinite reflectance of 5.38 per cent RoMax (anthracite).