The Red 31 occurrence is located approximately 25 kilometres southeast of Stewart and covers a mountainous area at the northern headwaters of the West Kitsault River and Homestake Creek. Northern portions of the showing area are on the southeast edge of the extensive Cambria Icefield.

The Red 31 showing is located along the east boundary of the Eocene Coast Plutonic Complex in contact with volcanics and sediments of the Upper Triassic Stuhini Group and Lower Jurassic Hazelton Group; intrusive bodies within the property area are possibly related to the batholith.

At the showing, intrusive rocks consist of weakly sheared, medium grained feldspar porphyry. It is locally coarse grained with euhedral and anhedral crystals of feldspar and up to 5 per cent hornblende and is grey to light brown in colour. Local seams of pyrite l-2 millimetres in width occur along shear zones trending north. The feldspar porphyry unit appears to intrude a thick sequence of felsic volcanics, making determination of contacts very difficult. West of this intrusion, grey to reddish medium grained felsic volcanics form a thick, massive flow unit. Green and maroon andesitic clastic volcanics are present as narrow interbeds. Sparse, disseminated pyrite occurs in the felsic rocks. Narrow zones of carbonate alteration are present in the green and maroon volcanics. Locally, these zones may carry chalcopyrite or pyrite/pyrrhotite as narrow stringers or associated with quartz veinlets.

Mineralization appears to be related to a strong shearing pattern in a north-northeast direction within the intrusion. It consists of generally discontinuous pyrite veinlets up to 2 centimetres wide that form zones 1-3 metres wide. These broader zones tend to pinch and swell over short distances primarily due to the presence or absence of the pyrite stringers. The pyrite veinlets are generally associated with local coarse chalcopyrite or lenses of massive sphalerite several centimetres wide and up to 1-2 metres in length.

Sphalerite with minor pyrite and galena also occurs within carbonate altered breccia zones along shear zones. Locally, these zones can reach widths up to 4 metres but are mostly found intermittently along the shears. Occasionally these mineralized zones are found along strike lengths of 50 metres. Strong hydrozincite and lesser malachite stain are associated with the mineralization. A one metre chip sample (ERK-95-294) from a trench assayed 2.76 grams per tonne gold, 18.6 grams per tonne silver, 0.10 per cent copper and 0.39 per cent zinc (Assessment Report 24399).

During 1994, a reconnaissance rock geochemical and silt sampling program was conducted by Teuton Resources Corp. and Minivita on the Red 31 claim. The claim was part of the much larger Red project initiated by Teuton Resources Corp. In 1995, trench and rock sampling were conducted by Teuton Resources as a follow-up to 1994 results. A total of 9.85 metres of trenching was completed in five separate trenches over mineralized features.

During 2017 through 2019, Auryn Resources Inc. completed programs of geological mapping, geochemical (rock and soil) sampling, airborne and ground geophysical surveys and re-logging of historical drill cores.