The Ruby South occurrence is located south of Jim May Creek approximately 6 kilometres northeast of the creek mouth, about 53 kilometres northwest of the community of Germansen Landing.

The area is underlain by grey quartzite and siliceous sericite schist of the Neoproterozoic Swannell Formation (Ingenika Group) which have been intruded by an unnamed unit of Paleogene to Neogene felsic intrusive rocks.

Locally, a swarm of quartz veins hosts silver values. The main vein is 0.6 metre wide with a strike of 041 degrees and dipping 87 degrees southeast. The vein is comprised of quartz with a trace of a fine silver-grey mineral (possibly a sulphide). In 2010, a grab sample of vein material assayed 54 grams per tonne silver (Assessment Report 31836).

In 1987, Skylark Resources completed a program of rock, silt and soil sampling and geological mapping on the area as the Cabin 1-2 claims.

In 2001, L.B. Warren completed a program of geological mapping and rock and soil sampling on the area as the Jimmay property. During 2010 through 2012, Brocade Metals completed programs of prospecting, trenching and geochemical sampling on the area as the Ruby claims.