The Split Mouth showing area is underlain by marine sedimentary and volcanic rock of the Upper Triassic Stuhini Group. The stratigraphy is intruded by Eocene granite of the Major Hart Pluton and Early Jurassic monzodiorite to gabbro of the Texas Creek Plutonic Suite. Further west the area is underlain by Devonian to Permian sedimentary rocks of the Stikine Assemblage.

Sample 463100 taken from a 0.25 meter wide quartz vein which appears to trend 020 degrees, assayed 18.4 grams per tonne gold with 0.058 per cent copper and 0.090 per cent zinc (Assessment Report 19534). A further 170 meters up Split Creek, sample 463096 was taken across a width of 1 metre from a system of quartz stringers in sediment-hosted fracture zone with pyrrhotite, pyrite and chalcopyrite. The zone, with 0.59 gram per tonne gold, strikes 020 degrees and dips 70 degrees to the east (Assessment Report 19534). Sample 463097, taken from parallel zone four meters west of sample 463096, contained 5 per cent pyrrhotite and pyrite and contained 1.09 grams per tonne gold (Assessment Report 19534).

Please refer to the Rolls Royce prospect just south of Split Creek for details of a common work history.