The Sinclair occurrence is in the southeastern headwaters of Sinclair Creek, at an elevation of approximately 1820 metres.

The area is underlain by quartzite, wacke, argillite and siltstone of the Mesoproterozoic (Middle) Aldridge Formation (Purcell Supergroup), intruded by meta-gabbro or meta-diorite of the Proterozoic Moyie Intrusions.

Locally, thin-bedded galena-sphalerite mineralization occurs in a 60-metre-thick mudstone unit that has been traced on surface for 600 metres. Diamond drilling intersected stratiform sphalerite mineralization 90 metres downdip from the surface showing. Mineralization consisted of 40 thin, bedding-parallel bands of disseminated sphalerite and pyrrhotite ranging in thickness from 1 to 10 centimetres. The sulphide-rich bands are scattered throughout a 150-metre section of thin-bedded argillite and silty argillite of the Mesoproterozoic (Helikian) Aldridge Formation (Purcell Supergroup).

In 2014, a drillcore sample (1621560) from historical drillhole P99-5 assayed up to 0.114 per cent zinc over 0.1 metre (74.5 to 74.6 metre down hole; Assessment Report 34880).

Work History

In 1983, Noranda Mining and Exploration Inc. conducted an airborne magnetic and electromagnetic survey on the area as part of the Mount Evans property. In 1987, Esso Resources completed a program of rock and silt sampling, geological mapping and a 3.0 line-kilometre electromagnetic survey on the area immediately east as the Mac 1-10 claims. In 1993 and 1994, Cominco completed 36.6 line-kilometres of electromagnetic surveying on the area as the Roar claims.

In 1999, Chapleau Resources Ltd. completed two short diamond drill holes (P99-4, 5), totalling 371.6 metres, on the occurrence. In 2001, a single, 291.7-metre, diamond drill hole (PAKK00-15) was completed.

In 2014, D. Anderson logged and sampled two cores drilled in 1999 and 2000. In 2015, the area was prospected and sampled by T. Kennedy. Also at this time, Edward Sanders conducted a compilation program of historical geological, geochemical and geophysical programs performed on the area as the Sinclair claim. In 2017, Edward Sanders conducted a minor program of prospecting, rock sampling and a 5.0 line-kilometre gravity survey on the Sinclair claims. In 2018, a program of historic drillcore examination and sampling (holes P-00-15 and P-04-01E) was conducted on the Pakk property. Also at this time, a minor soil sampling program and a 3.4 line-kilometre ground magnetic survey was conducted on the Sinclair claims.

In 2020 and 2021, Edward Sanders completed a minor program of geological mapping, geochemical (rock and soil) sampling and a 4.0 line-kilometre gravity survey on the Sinclair and Golden Larch claims. In 2022, Amaroq Gold Corp. completed a 9.6 line-kilometre ground electromagnetic survey and a 303.0 line-kilometre airborne electromagnetic and radiometric survey on the Sinclair and Golden Larch claims.