The Jo showing is located in the northerly part of the Late Triassic-Middle Jurassic Guichon Creek batholith in the upper reaches of Guichon Creek and on the southern and southwestern slopes of Mount Fehr. Eocene volcanics of the Kamloops Group cover the intrusive rocks over most of the property area. The part of the batholith in the Jo showing area is a medium to fine grained quartz diorite. Chalcopyrite occurs as sparse disseminations and along minute quartz veinlets.

In 1969, Valley Forge Mining Ltd. conducted an exploration program over their large claim holdings which consisted of 196 kilometres of grid lines, 10 kilometres of access road and 14 kilometres of induced polarization survey.