The Judy 4 showing is located on the upper north slopes of Mount Baldy, a few kilometres east of Little Fort. The property area covers the western contact of the Cretaceous Baldy batholith and volcanic and sedimentary rocks of the Devonian to Permian Fennell Formation of the Slide Mountain Group. The old Windpass mine (092P 039) is 3.5 kilometres to the southwest.

At the Judy 4, a stockwork of quartz-molybdenite mineralization is developed in brecciated, silicified quartzites. This zone occurs at the contact between Fennell Formation quartzites and a diorite which is probably related to Fennell Formation volcanic rocks. The molybdenite mineralization is likely related to the last felsic phases of the quartz monzonitic Baldy batholith.

The area was staked as the Judy Group of claims and was mapped in 1965 by Quebec Cartier Mines. Darkhawk Mines staked the area as the SS claims, and ran a geochemical soil survey of 555 samples in 1971. Cominco Limited conducted geological mapping and a soil geochemistry survey in the area in 1980. The area was staked as the Kog claims in 1990 by F.P. O'Grady and Peter Klewchuk. They ran a program of prospecting, geochemical sampling and geological evaluation that summer. O'Grady and Klewchuk renamed the Judy 4 showing as the "Cliff" showing and the nearby Line (092P 038) showing they renamed the "Lake" showing.