The Sognidora Gossan occurrence is located east of Rheinhart Creek, approximately 400 metres south of Rheinhart Lake.

The area is underlain by metasedimentary rocks of the Mississippian to Pennsylvanian Fourth Lake Formation (Buttle Group) and volcanic rocks of the Upper Devonian McLaughlin Ridge Formation (Sicker Group). These two formations were historically referred to as the Myra Formation and contained the ‘Sediment-Sill unit’ of the Sicker Group. The Sediment-Sill unit has been tentatively correlated with the Fourth Lake Formation and the ‘sills’ have been mapped separately. The sills are believed to be coeval with the Karmutsen Formation basalts and are informally named Mount Hall gabbro. These rocks have been intruded by granitic rocks of the Early to Middle Jurassic Island Plutonic Suite.

Locally, a gossanous, altered felsic intrusive with hematite, disseminated pyrite and iron-oxide staining hosts minor copper mineralization.

In 1987, a sample (17839) returned 0.054 per cent copper (Assessment Report 16802).

Work History

In 1983, Cominco Ltd. conducted a program of geological mapping and geochemical (rock and silt) sampling on the area immediately south 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.