At the Sugar Loaf showing, a tunnel approximately 18 metres in length had been driven on a well defined quartz vein about 2.1 metres wide. The vein strikes north and dips steeply west in a unit described as a quartzite formation, and has been traced for about 61 metres on surface. The vein is sparsely mineralized with pyrite and galena; gold values are reported to be associated with the pyrite.

Recent geology maps indicates the area is underlain by the lower Paleozoic Sicamous Formation (Mount Ida Group) near the contact with Cretaceous? granodiorite.