The Nepe (Gold Valley) occurrence is located on the south side of Slewskin Creek and can be reached by 3 kilometres of gravel road that leaves the Nakusp-Needles highway, 11 kilometres south of Nakusp (Minister of Mines Annual Report 1964, page 129).

Geological Survey of Canada Bulletin 161 shows the area to be underlain by lightly metamorphosed clastic sedimentary strata of the Triassic Slocan Group, which includes pelitic to silty phyllite and slate.

Locally, a north west -trending structure containing a mineralized, quartz- filled breccia zone is hosted by steeply dipping argillite, calcareous volcanic siltstone and volcaniclastics. Mineralization consists of disseminations to blebs of galena, sphalerite, tetrahedrite and chalcopyrite. Underground development on the property consists of two levels that are vertically 15 metres apart (Minister of Mines Annual Report 1964, page 129). The upper level has explored a narrow quartz vein that is sparsely mineralized with pyrite and argentiferous tetrahedrite. The vein was also intersected in the lower adit, but little mineralization was found.

In 1983, underground chip sampling yielded up to 0.4 gram per tonne gold and 32.1 grams per tonne silver (Assessment Report 11869). Previous sampling of the underground workings are reported to have assayed up to 17.1 grams per tonne gold and 13,680 grams per tonne silver (Assessment Report 11863).

A reserve of developed ore, consisting of 1860 tonnes averaging 11.3 grams per tonne gold and 2110 grams per tonne silver across 0.73 metre, is reported in the underground workings (Assessment Report 11499).

No details are available on the early work on the property other than the presence of the two adits and that at least 58 metres of drifting was completed on the two adits in the early 1960‘s (Minister of Mines Annual Report 1964, page 129). In 1982, Megaline Resources Limited and North American Power Petroleums Incorporated completed a soil geochemical survey over the property. A total of 298 samples were collected and analysed for gold, silver, lead and zinc. In November of 1982, Starlight Energy Corporation undertook an airborne magnetic and VLF-EM survey over the property. In 1983, Aquarius Resources completed a program of geological mapping and airborne geophysical surveys on the area. In 1984, a ground VLF-EM survey was undertaken and another soil sampling program was completed; 403 samples were collected and analyzed for copper, lead, zinc, silver and arsenic.

In 2008, an airborne electromagnetic and magnetometer geophysical survey was conducted for Kootenay Gold Inc., and Theia Resources Ltd. on the property containing the occurrence. Results correlated with orientation and placement of the Ruby Range, Meadow Mountain, and affiliated quartz diorites, and the local sill-mudstone complex (Thompson, R. (2008-12-01): Technical Report on Geology, Exploration Programs and Results from the Rosetta Stone Property with Recommendations for Further Exploration).