Reconstruction of the gold-bearing structure from the Giant Mine deposit along the West Bay Fault by Neil Campbell in the 1940’s led to the discovery of the Campbell Shear at Con Mine, from which approximatively 5 Moz of gold was produced. The Campbell Shear occurs between two unconformities, namely the Bode Tuff, a debris flow, and the Jackson Lake Formation, a conglomeratic unit. North of the Giant Mine only the Jackson Lake Formation was recognized and mapped. The unconformity marked by the Bode Tuff was assumed to pinch out around the Vee Lake area. However, recent mapping done north of the Giant Mine along the west shore of Walsh Lake has revealed a debris flow that is similar to the Bode Tuff. A major shear (up to 100m-wide) was also mapped between this unconformable debris flow and the Jackson Lake Formation to the east. Although several historical trenches were dug over decades of exploration, the structure was never recognized as being the potential north extension of the Campbell Shear. Surface samples show anomalies in arsenic and antimony with only traces of gold (below 100ppb level). This new interpretation is ground-breaking since it opens the possibility of finding another gold deposit hosted in a Campbell Shear-like structure north of the Giant Mine.