The location of the Gypsum showing is described only as near the mouth of the Inkikuh Creek, a tributary of the Thompson River.

Gypsum nodules and widely spaced selenite stringers occur in silicified and pyritized Carboniferous-Jurassic Cache Creek Complex (Group) metasediments close to the contact with the Early Jurassic- Late Triassic Guichon Creek batholith. These metasediments could be Upper Triassic Nicola Group rocks (see Geological Survey of Canada Map 42-1989).

The gypsum is reported to be now caved and buried in slide material. The highest assay, obtained in 1941, was 21.48 per cent gypsum (Geological Survey of Canada Memoir 262).