The Trek occurrence is located at an elevation of approximately 930 metres in the northern headwaters of a south-flowing tributary of the Chemainus River and approximately 3.0 kilometres southeast of the south end of Rheinhart Lake.
Regionally, the area is underlain by chert, siliceous argillite and siliciclastic rocks of the Mississippian to Pennsylvanian Fourth Lake Formation (Buttle Lake Group) and volcaniclastic rocks of the Middle to Upper Devonian Mclaughlin Ridge Formation (Sicker Group). These rocks are intruded by granodiorite and quartz diorite of the Early to Middle Jurassic Island Plutonic Suite and gabbroic to dioritic rocks of the Triassic Mount Hall Gabbro. Undivided sedimentary rocks of the Upper Cretaceous Nanaimo Group locally overlay the previous units.
Locally, a 0.15-metre wide quartz vein with sulphides (pyrite-chalcopyrite) is hosted in green jasper with gold and copper values. The vein has been intermittently traced along strike for approximately 50 metres.
In 1985, a drillhole (1-85), located on the southeastern part of the Trek claims, approximately 600 metres to the southeast of the occurrence, intersected a schist-phyllite hosting quartz stringers and quartz breccias with disseminated pyrite yielded up to 0.48 gram per tonne gold over 3.05 metres (Assessment Report 15082).
In 1988, percussion drilling on the Trek claims yielded values of up to 0.93 gram per tonne gold over 1.5 metres in hole A8822 (Assessment Report 18731). This hole was located approximately 900 metres to the south of the occurrence.
In 2011, a rock sample (1.1) from the main occurrence area assayed 2.34 grams per tonne gold and 0.26 per cent copper, and a nearby sample (5.1) along strike of the vein yielded 1.85 per cent copper (Assessment Report 32279). Also at this time, two other rock samples (1.2 and 4.1) from crosscutting quartz veins hosting native copper and malachite cutting jasper, taken approximately 400 metres to the south of the previous samples, yielded 2.00 and 0.59 per cent copper, respectively (Assessment Report 32279).
Work History
An approximately 91.5-metre long adit is reported on the northwestern part of the former Trek claims, possibly dating to as early as 1918. The adit was driven into a schist-jasper outcrop reported to carry gold values.
In 1984, Trek Resources Ltd. completed an unknown amount of drilling on the Trek claims. The following year, a single diamond drill hole, totalling 122.5 metres, was completed on the Trek claims. In 1988, Trek Resources Ltd. completed a 24 hole percussion drilling program, totalling 388.0 metres, on the Trek claims.
During 2009 through 2011, Rock-Con Exploration completed programs of spectral analysis, prospecting and geochemical (rock and soil) sampling on the Sognidoro property.
In 2021, Crest Resources Inc. conducted a program of prospecting and geochemical (rock, silt and soil) sampling on the area immediately west as the Sognidoro property. In 2022, Reverend Mining Corp. completed a further program of prospecting and geochemical (rock, silt and soil) sampling on the Sognidoro property.