The Buchan Creek showing is located on a north-facing slope about 1.0 kilometre southeast of Buchan Creek and 2.25 kilometres west of the west shore of Taku Arm.

In 2011, the Buchan was reported to consist of a northwest-trending quartz vein, centered on a sheared portion of the vein. The quartz vein is locally vuggy, and contains disseminated and massive galena, chalcopyrite and minor malachite and azurite. The vein is hosted by amphibolite gneiss, likely part of the Middle Devonian paragneiss metamorphic assemblage, near the contact with metagranodiorite, likely belonging to the Early Jurassic Aishihik Suite. The paragneissic assemblage is thought to be related to the Yukon-Tanana terrane, and the Permian Boundary Ranges Metamorphic Suite, also present in the vicinity of the showing, is part of the of the Stikinia terrane.

The vein is exposed in bedrock at one location only; here it is roughly 0.9 metres wide, centered on a 30-centimetre strongly sheared and brecciated section with roughly 15 per cent infilling of light blue “steel” galena. The non-sheared quartz is also moderately fractured. The north-eastern margin of the vein lies in contact with fractured, limonitic, and silicified aplite, with minor fracture-controlled pyrite. Past sampling by Eagle Plains Resources in 2007 across the vein returned gold values up to 8.0 grams per tonne; values up to 0.5 gram per tonne gold were returned from the aplite (Assessment Report 33152).

Trenching in 1981 over a caved adit driven in the early 1900s revealed a pod shaped vein 21 metres long. The strike and dip vary from 125/80 southwest on the south end to 160/80 east on the north end. The adit is estimated to have been 25 to 30 metres long. A number of workings extend about 50 metres downhill from the outcrop.

Two 1.1-metre-wide chip samples, taken 2 metres apart along the vein, averaged 15.43 grams per tonne gold, 244.8 grams per tonne silver, 9.85 per cent lead, 0.20 per cent copper, and 0.05 per cent zinc (Assessment Report 8384). A grab sample taken in 1989 assayed 925 grams per tonne silver, 7.6 grams per tonne gold, 0.28 per cent copper, 74 per cent lead (this value is suspect), and 0.086 per cent zinc (Fieldwork 1989, page 194).

Three samples collected from the showing in 2011 assayed between 0.03 and 8.41 grams per tonne gold, 2.3 to greater than 300 grams per tonne silver, 0.011 to 0.3 per cent copper, and 0.080 to 24.18 per cent lead (Assessment Report 33152). Airborne magnetic lineaments and EM conductivity anomalies are spatially coincident with the Buchan’s showing and on-strike projections of its vein system.

In 2013, a single day field program conducted by Eagle Plains produced 92 soil samples and four rock samples for analysis. Samples were collected at, or near, the White Moose-Shaft (104M 012) and Buchan (104M 036). The soil samples collected to the north of the Buchan Creek showing extended the soil anomaly to the north for lead, gold, antimony, and silver: all of which are elements closely associated with the mineralization observed at the Buchan Creek showing. With the inclusion of the new samples, the anomaly now extends north of the showing for 630 metres, with a width of 50 to 220 metres

In 2017 DeCoors Mining Corp. conducted a single day field program with the intent of locating previously reported mineralized veins and conducting traverses to prospect for new vein systems (Assessment Report 37317). A total of 20 readings were taken in the field using a Niton portable XRF analyzer. The field day was successful in locating additional quartz veins which appear unrelated to the mineralized vein system at the Buchan showing. Several samples were also collected in the Rupert-North occurrence area (104M 036) and the Fee Glacier area (104M 037) (Figure 13, Assessment Report 37317).

In 2018, a four-man crew collected a total of seven rock samples from different locations along the quartz vein exposure of the Buchan Creek showing. Samples consisted of white quartz with varying quantities of disseminated to semi-massive galena, chalcopyrite, pyrite, and minor amounts of malachite and azurite. Sample gold values range from 0.39 to 11.7 grams per tonne, averaging 3.91 grams per tonne; silver values range from 22.8 to greater than 100 grams per tonne; copper values from 29.6 grams per tonne to 8139 grams per tonne; lead values from 0.12 to greater than 1 per cent; and zinc from 0.0022 to 0.065 per cent (Assessment Report 38252). Tellurium and antimony values were elevated, in most samples, ranging up to more than 0.1 per cent tellurium and 0.2 per cent antimony.

See Titan (104M 089) for more details on area geology and work history.