The Red occurrence is located at an elevation of approximately 440 metres on the northwest flanks of Mount Petritt in the northwest portion of West Redonda Island.

Regionally, the area is underlain by dioritic and granodioritic intrusive rocks of the Jurassic to Cretaceous Coast Plutonic Complex. Age dating from the southern part of West Redonda Island indicates 111 to 113 million years by potassium-argon from biotite and hornblende (Geological Survey of Canada Open File 480). Locally, highly metamorphosed greenstone and limestone of unknown group, formation or age are found in diorite. The strata strikes north with a dip of 65 degrees east.

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 1977, chip sampling of two historical trenches yielded 0.20 and 0.33 per cent copper with 0.02 and 0.03 per cent molybdenum over 24 and 64 metres, respectively (Assessment Report 6330).

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, whereas 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 2021, rock samples (109684, WP852 and WP857) from the occurrence area yielded values from 0.197 to 1.015 per cent copper with 0.005 to 0.008 per cent molybdenum and up to 7.8 grams per tonne silver (Assessment Report 39736).

In 2023, diamond drilling yielded intercepts including: 0.251 per cent copper with 0.025 per cent molybdenite over 107.9 metres in hole Red-23-02; 0.323 per cent copper with 0.020 per cent molybdenite over 77.3 metres in hole Red-23-03; 0.235 per cent copper with 0.023 per cent molybdenite over 72.0 metres in hole Red-23-04 and 0.279 per cent copper with 0.028 per cent molybdenite over 142.6 metres in hole Red-23-05 (Assessment Report 41756). Most of the holes are reported to have bottomed in mineralization.

Work History

1964, the area was staked as the Red claims by J.C. Stephen and a program of prospecting and soil sampling were completed. In 1965, Mastodon Highland Mines completed a program of soil sampling, geological mapping and a 3.2 line-kilometre ground electromagnetic survey on the Red claims. The following year, a program of hand and bulldozer trenching was conducted.

In 1972, Teck Corp. completed a 2.0 line-kilometre electromagnetic survey and a 4.1 line-kilometre magnetic survey on the Red claim group. 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, Teck conducted a program of prospecting and geochemical (water, silt and soil) sampling on the Bay, Tom and Joe mineral claims to the south.

In 2005, a geological air-photo lineament interpretation program was completed by Brian K. Bowen on the area as the Red property. In 2013, the area was prospected by A.I. Betmanis.

In 2021, Homegold Resources Ltd. conducted a minor program of rock sampling and a 1.5 line-kilometre ground magnetic and radiometric survey on the area as the Redonda property. In 2023, Homegold Resources Ltd. completed five diamond drill holes, totalling 799.8 metres, on the Redonda property. The following year a rock sampling program and a 637.0 line-kilometre airborne magnetic and radiometric survey was conducted on the property.