The Kitkat 4 showing is located about 1 kilometre north of the Kitkat 3 showing (092F 149), about 14.5 kilometres east of Alberni Inlet.

The area is underlain mainly by basalt, pillowed basalt, basaltic tuff and agglomerate of the Devonian Duck Lake Formation, Sicker Group. The mafic volcanics contain gabbroic sills.

Mineralization occurs in shear zones within fine to medium- grained, medium to dark green flows. The shears commonly contain 3 to 5 centimetre wide quartz veins and are crosscut by quartz-carbonate veinlets. Saussuritic alteration accompanies intense shearing.

A sample from a 30 metre wide shear (Showing BR35A) contained 3.42 grams per tonne gold. A sample, 850 metres to the south, from an epidotized fracture filling with malachite, azurite and sphaler- ite, assayed 0.99 per cent copper (Assessment Report 13945). Pyrite is present as disseminations and pods in the sheared flows.

The Kitkat showings were first explored by Gunnex Ltd. between 1963 and 1966. This work involved regional silt sampling and prospecting. In 1985 and 1986, JBL Resources completed programs of geological mapping, geochemical sampling, prospecting and VLF-EM and magnetometer surveys. This work identified the five Kit Kat occurrences: Kitkat (MINFILE 092F 282), Kitkat 2 (MINFILE 092F 284), Kitkat 3 (MINFILE 092F 149), Kitkat 4 (MINFILE 092F 218), Kit Kat 5 (MINFILE 092F 461). In 2011, Gold Ridge Explorations Inc. completed a regional program of litho-geochemical sampling, helicopter-borne versatile time domain electromagnetic (VTEM) and aeromagnetic geophysical surveys, totalling 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.