The Sognidora West occurrence is located on Rheinhart Creek, approximately 1.3 kilometres south of Reinhart 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, diabasic rocks host a quartz-carbonate vein with blebs of galena.

In 1983, a sample (HER-9 or HWR-9) of gabbro hosting disseminated chalcopyrite, pyrite and magnetite, located approximately 500 metres southeast of the vein occurrence, yielded 0.115 per cent copper (Assessment Report 11564).

In 1987, a sample (17814) of mineralized quartz-carbonate vein assayed 0.01 gram per tonne gold, 1.2 grams per tonne silver and 0.459 per cent lead (Assessment Report 16802).

Work History

In 1983, Cominco Ltd. conducted a program of geological mapping and geochemical (rock and silt) sampling on the area as the Hart 1-2 claims.

In 1987, Canamin Resources completed a program of prospecting, geological mapping, trenching, geochemical sampling (rock, silt, soil, heavy mineral) sampling and ground electromagnetic and magnetic surveys on the Sognidoro 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 Sognidoro property. In 2022, Reverend Mining Corp. completed a further program of prospecting and geochemical (rock, silt and soil) sampling on the Sognidoro property.