The Cob occurrence is located near Graham Peak, approximately 1.7 kilometres southwest of Sicintine Lake.

The area is underlain by clastic sedimentary rocks of the Middle Jurassic to Lower Cretaceous Bowser Lake Group intruded by the Late Cretaceous Bulkley Intrusions, which are mainly granodioritic in composition. At Graham Peak, porphyritic granodiorite and diorite have intruded argillaceous sediments. An intensely silicified and fractured capping lies within the porphyritic granodiorite and covers the area of molybdenite mineralization.

Two areas of mineralization, known as the north and south zones, are found on the Graham Peak property. Both zones contain molybdenite mineralization consisting of fine flakes in quartz veins and veinlets or as a film along edges and fracture planes. The South zone has been traced for approximately 165 metres along strike, while the North zone has been traced over a distance of approximately 210 metres. Molybdenite mineralization has been found in float at, nearby, Utah and Fall creeks and low-grade copper-molybdenum mineralization has been found at the Utah, Horne and Mad showings.

Work History

In 1967, a geochemical survey and twenty-six trenches were completed on the property by Canadian Superior Exploration Limited. One trench, in the north zone, returned an average grade of 0.091 per cent molybdenite over 12 metres. Sampling in the north zone averaged 0.07 per cent MoS2 and the south zone averaged 0.03 per cent molybdenite (Property File Cyprus Anvil Leigh, O.E., 1967).

In 1968, 996 metres of diamond drilling was completed on the north zone. One intersection returned 0.125 per cent molybdenite over 18 metres (Property File Cyprus Anvil Kahlert, B.H., 1968). In 1969, two more diamond-drill holes, totalling 591 metres, were drilled on the eastern slope of Graham Peak. Drillhole A-5-69 averaged 0.02 per cent molybdenum over its entire 302.1-metre length (Property File 812850).

In 2013 and 2014, Vale Exploration Canada Inc. completed a program of geological mapping, geochemical sampling and a 3278.0 line-kilometre airborne magnetic survey on the area as the S2 property. A grab sample (RX399513) from a quartz monzodiorite dike hosting a 10-centimetre wide quartz-molybdenite vein assayed 0.569 per cent molybdenum (Assessment Report 35139).

In 2017, an induced polarization and magnetotellurics survey was completed on the property.