The St. Anthony showing is located about 25 kilometres southeast of Port Alberni near the western bank of the Nitinat River, approximately 50 kilometres west of Duncan. The Silvercross (092C 130) showing occurs 3.4 kilometres to the south.

The area is underlain by basaltic to rhyolitic tuff, breccia, flows, sills, dykes, and minor argillite and greywacke of the Lower Jurassic Bonanza Group intruded by granitic rocks of the Early to Middle Jurassic Island Plutonic Suite.

Locally, a number of types of mineralization occur:

1.) Pyrite, chalcopyrite, bornite, tetrahedrite, magnetite and malachite in a quartz and epidote gangue. Pyrite occurs in the matrix of graphitic quartz veins, in association with shears in chloritized diorite, in massive sulphide stringers (up to 0.2 metres wide), and in gossanous shears in basalt. Magnetite occurs with small stringers of pyrite and chalcopyrite associated with faulting.

2.) Sheared quartz veins/stringers contain blebs and disseminations of pyrite partially replaced by variable amounts of bornite and chalcopyrite with occasional wispy stringers of tetrahedrite. These veins occur in intrusive rocks related to fractures and shears along the contact areas.

3.) Pyrite and tetrahedrite, in large up to 0.5 metres wide quartz veins, are associated with the sheared contact between chloritized diorite and basalt. A calc- silicate vein, 0.2 to 0.3 metres wide, hosted in basalt, contains disseminated pyrite, chalcopyrite and malachite staining.

4.) A large quartz vein about 0.50 metres wide is exposed for 10 metres in the creek bed and contains fine disseminated and massive pyrite, tetrahedrite and chalcopyrite in chloritized diorite.

During 1987 through 1989, Gracey Resources completed programs of geological mapping, geochemical soil sampling, rock sampling and geophysical surveys. In 1988, rock chip sampling returned values up to 1.89 grams per tonne gold and 5.48 grams per tonne silver (Sample 1904) from a silicified shear containing quartz veins and occasional hematite in gabbro (Assessment Report 17845).

In 2011, Gold Ridge Explorations Inc. completed a regional program of litho-geochemical sampling and helicopter-borne versatile time domain electromagnetic (VTEM) and aeromagnetic geophysical surveys, totaling 34 square kilometres, on the area as the Columbia Shear property. In 2012 and 2013, Golden Peak Minerals Inc. completed programs of geological mapping, geochemical (soil, rock and silt) sampling and a 24.35 line-kilometre ground magnetometer survey on the area. In 2017, New Point Exploration Corp. completed a program of rock, soil, silt and moss mat sampling on the area as the Columbia Shear property.