The IMP occurrence is located near the headwaters of Granite Creek, a west tributary of Findlay Creek, in the Golden Mining Division.

The area is underlain by Proterozoic clastic sedimentary rocks and Cretaceous intrusive rocks. The occurrence is within the Creston Formation of the Proterozoic Purcell Supergroup which consists of an interbedded sequence of quartz siltstone and argillite with some quartz arenite and minor quartz wacke (Open File 1990-26).

The sedimentary rocks have undergone regional metamorphism to at least greenschist facies.

Mineralization consists of molybdenite occurring in minor quantities in irregular veins within the Creston Formation near the eastern border of the Fry Creek intrusion.

The Fry Creek intrusion is characterized by leuco-quartz monzonite of medium grain size and uniform texture. The northwest portion of the pluton is a coarse, muscovite quartz monzonite with minor tourmaline. Potassium/argon age determinations for the Fry Creek intrusion yielded values ranging from 45 to 97 million years with an average of 77 million years for the intrusion (Geological Survey of Canada Memoir 369).