The Rubysih occurrence is located west of Kutcho Creek, about 92 kilometres east-southeast of Dease Lake.

In the area of the showing, upper Permian to Lower Triassic Kutcho assemblage mafic to felsic metavolcanic rocks and sediments underlie Upper Triassic Sinwa Formation limestone and Lower Jurassic Inklin Formation metasedimentary and sedimentary rocks. The area is interpreted to have been isoclinally folded during formation of the King Salmon allochthon in Early to Middle Jurassic time. The Inklin Formation has recently been reassigned to the Laberge Group (Overlap Assemblage), and the Sinwa Formation to the Stuhini Group (Stikine Terrane). See the Kutcho Creek deposit (104I 060) located 14 kilometres east for details of the new age dates for rocks of the Kutcho Formation.

Sedimentary rocks of the Inklin Formation (argillite, greywacke, wacke) are reported to host veins of quartz and siderite containing tetrahedrite and galena. One sample of the material assayed 30.3 per cent lead, 922.0 grams per tonne silver and 0.2 gram per tonne gold; another sample with 10 per cent tetrahedrite yielded 0.49 per cent copper, 0.7 gram per tonne silver and trace gold (Property File - Archer Cathro).

The showing was examined in 1961 by the Cave syndicate.

In 2008-10, the area was explored by Kutcho Copper Corp. as apart of the Kutcho property (Accent 1 claim). For a complete exploration history see Kutcho (104I 060) or Assessment Report 31282.