The Serpentine Creek showing is located about 12 kilometres north-northeast of Dease Lake.

The area is underlain by upper Mississippian to Permian ultramafic rocks of the Cache Creek Complex. This asbestos occurrence is documented in an old federal government mineral resource file and virtually nothing is known of it. It can be certain that the asbestos mineral occurs in ultramafic rocks of the Cache Creek Complex. These rocks consist of peridotite, dunite and pyroxenite which are often altered to serpentinite.