The Bellevue showing is located just east of the Illiance River, about 15.5 kilometres northeast of Alice Arm. The area was explored for lead and silver in the early 1920s.

The region is underlain by Lower Jurassic Hazelton Group volcanics and sediments situated on the east limb of the north-northwest trending Mount McGuire anticline. These rocks have been regionally metamorphosed to greenschist facies.

The showing comprises a number of shear zones, generally striking 158 degrees and dipping moderately west, hosted in pyritic porphyritic andesitic tuffs and breccias. The zones locally contain lenses, veins and stringers of quartz mineralized with pyrite, galena, sphalerite and tetrahedrite. These are generally parallel to the enclosing shear zones. The main showing is located at the southeast corner of the Blenheim claim (Lot 3509). It consists of a quartz vein, mineralized with galena and tetrahedrite, up to 1.2 metres wide. The vein occurs in the hangingwall of a shear zone, 6.1 to 15.2 metres wide, that has been traced for 1000 metres. This shear zone also contains stringers of quartz, pyrite and galena which occur over a width of 4.9 metres adjacent to the quartz vein of the main showing.

A 4.6 metre chip sample taken from the hangingwall across the shear zone assayed 2.32 grams per tonne gold, 790 grams per tonne silver, 3.4 per cent lead and 5.4 per cent zinc (Minister of Mines Annual Report 1920, page 51). In 1921, an adit 97.5 metres long was driven eastward 30 metres below the main showing but failed to intersect any significant mineralization.