The Whistler SW (L49 and L52) occurrences are located east and southeast of Mount Baldwin at elevations of approximately 1400 metres.

The area occurs on the eastern edge of the Britannia-Indian River pendant, which hosts the volcanogenic deposits of the Britannia camp (MINFILE 092GNW003). The Britannia-Indian River pendant is mainly a calc-alkaline, sub-aqueous volcanic and sedimentary sequence of felsic to intermediate pyroclastics, flows, cherts, argillites and greywackes. The entire pendant has been classified as part of the Upper Jurassic to Lower Cretaceous Gambier Group. Cenozoic to Mesozoic Coast Plutonic Complex intrusives surround portions of the stratified rocks, creating screens or pendants. These bodies are oriented north westerly throughout the Coast complex. Pliocene to recent Garibaldi Group basaltic dikes and sills intrude both the pendant and plutonic rocks.

At the L49 occurrence, felsic pyroclastics host pyrite, chalcopyrite and sphalerite mineralization. In 1981, rock samples (25614 to 25619) assayed up to 0.26 gram per tonne gold, 58.1 grams per tonne silver, 1.49 per cent copper, 3.73 per cent lead and 3.57 per cent zinc (Assessment Report 11642).

The L52 occurrence, located approximately 400 metres to the north-northwest, consists of argillites in contact with a rhyodacite hosting pyrite, chalcopyrite and sphalerite mineralization. In 1981, a rock sample (25643) assayed 0.64 gram per tonne gold, 36.5 grams per tonne silver, 1.66 per cent copper, 2.14 per cent lead and 5.63 per cent zinc (Assessment Report 11642).

The area has been historically explored in conjunction with the McVicar (MINFILE 092GNW006) occurrence to the north. During late 1969 and early 1970, Kennedy Silver Mines completed a program of soil sampling and geological mapping on the area immediately south as the Dal, Lilly and Agape claims. During 1978 through 1983, Texasgulf and later Kidd Creek Mines completed programs of rock and soil sampling, geological mapping and ground and airborne geophysical surveys. In 1987, Kidd Creek Mines completed a program of rock sampling and geological mapping. During 2011 through 2016, the area was prospected and sampled as the Sky Pilot Gold property.