The Rock Creek Asbestos occurrence is located between Johnstone and Nathan creeks, 2.5 kilometres north of Highway 3. Bridesville, British Columbia lies 8 kilometres to the southwest.

The oldest rocks in the vicinity of the Rock Creek Asbestos occurrence belong to the Permian to Carboniferous Kobau and Anarchist groups. Amphibolite, greenstone, quartzite, chert, chlorite schist and minor marble comprise the Kobau Group and amphibolite, greenstone, quartz chlorite schist, quartz biotite schist and minor serpentinized peridotite comprise lithologies of the Anarchist Group. Penticton Group lithologies outcrop around the occurrence while Middle Jurassic porphyritic granite, granodiorite and monzonite intrusions are found to the immediate west. Smaller plugs, dikes and sills of biotite granodiorite, quartz diorite and granite of Middle Jurassic to Cretaceous age intrude the Anarchist Group rocks.

Small dikes and sills of serpentinite are assigned to the Anarchist Group while larger bodies are of uncertain age. The Rock Creek Asbestos occurrence is hosted in one of these serpentinite bodies. No economic occurrences of asbestos have been found in the area to date but the existence of serpentinite with chrysotile indicate that the correct conditions for formation did prevail. At the occurrence, scattered narrow veinlets of chrysotile fibre occur in serpentinite. No further geological details could be found.