The Rose South occurrence is located near a small lake south of Rose Pass and at an elevation of approximately 1900 metres.
The area is underlain by phyllite, quartzite and grit of the Upper Proterozoic Horsethief Creek Group (Windermere Supergroup) and quartz arenite sedimentary rocks of the Middle Proterozoic Mount Nelson Formation (Purcell Supergroup). These have been intruded by a steeply dipping quartz feldspar porphyry dike.
Locally, a conglomerate hosts a 50-centimetre wide quartz vein with sphalerite and galena mineralization. The conglomerate also hosts disseminated blebs of galena and sphalerite.
In 1991, a sample (B83283) from the tunnel assayed 5.5 per cent lead and 149.5 grams per tonne silver, while an outcrop sample (B83284) assayed 4.41 per cent lead, 2.27 per cent zinc and 97.1 grams per tonne silver (Assessment Report 22097).
The area has been historically explored in conjunction with the nearby Humbolt (MINFILE 082FNE047) and Rose Pass (MINFILE 082FNE111) occurrences. Historical workings consist of a short tunnel of unknown age, which likely dates to the late 1890’s or early 1900’s. During 1989 through 1991, South Kootenay Goldfields completed programs of rock and soil sampling and geological mapping on the area as the Lapointe Creek property. In 2008, a minor program of rock sampling and prospecting was completed.