The Red showing is located on the northwest flanks of Mount Petritt in the northwest corner of West Redonda Island, at an elevation of approximately 410 metres.

The area is underlain by diorites of the Jurassic to Cretaceous Coast Plutonic Complex. Sampling from the southern part of West Redonda Island indicates an age of 111 to 113 million years by potassium-argon from biotite and hornblende (Geological Survey of Canada Open File 480).

Two later stage quartz diorite intrusions underlie most of the area around the showing, an irregular quartz diorite hornblende porphyry dike and a quartz diorite porphyry plug. The quartz diorite hornblende porphyry is surrounded by a wide and irregular breccia zone. The breccia zone is composed of quartz diorite fragments in a matrix of quartz diorite hornblende porphyry. Chlorite-biotite alteration is prevalent in the matrix of the breccia zone.

Locally, widespread pyrite mineralization is disseminated throughout most of the rocks in the area, up to 2 per cent in breccia zones. A concentration of disseminated chalcopyrite is localized in and near the breccia zones. Molybdenite occurs primarily in quartz- filled fractures in the general area of chalcopyrite and partly as disseminations in the breccia zones.

In 1979, drill hole R79-2 intersected low- grade copper-molybdenum mineralization in the upper part of the hole, from 3.6 to 110.0 metres averaged 0.08 per cent copper and 0.007 per cent molybdenite, while an abrupt change in alteration, consisting of biotite and hornblende, is noted from the lower part of the hole, from 110.0 to 206.7 metres, which assayed an average of 0.20 per cent copper and 0.020 per cent molybdenite (Assessment Report 7346). Drill hole R79-4 was drilled to further test the zone and intersected disseminated chalcopyrite and pyrite with minor molybdenite mineralization in a quartz diorite. The hole averaged 0.09 per cent copper and 0.003 per cent molybdenite from 47.5 to 156.4 metres (Assessment Report 7346).

In 1965, Mastodon Highland Mines completed a program of soil sampling, geological mapping and a 3.2 line-kilometre ground electromagnetic survey on the area as the Red claims. In 1972, Teck Corp. completed a 2.0 line-kilometre electromagnetic survey and a 4.1 line-kilometre magnetic survey. This was followed up on, in 1977, with a program of pitting and soil sampling. In 1979, a program of 13 diamond drill holes, totalling 2381.2 metres, geological mapping and a 17.0 line-kilometre ground magnetic survey were completed. In 1980, a program of silt and soil sampling was completed. In 2005, a geological air-photo lineament interpretation program was completed. In 2013, the area was prospected by A.I. Betmanis.

The occurrence has been explored in conjunction with the nearby Red South occurrence.