The Dam occurrence is located on Ruby Mountain northwest of Surprise Lake, about 22 kilometres northeast of the community of Atlin.

The Ruby Mountain area is underlain by Mississippian to Triassic Kedahda Formation (Cache Creek Complex) sediments and mafic volcanics of the Upper Mississippian to Permian Nakina Formation (Cache Creek Complex). These are intruded by Upper Mississippian to Permian ultramafic rocks (Cache Creek Complex) and alaskite of the Late Cretaceous Surprise Lake batholith (Surprise Lake Plutonic Suite). The eastern flank of the mountain is overlain by Tertiary-Quaternary olivine basalt and scoria.

A skarn occurs at the contact of an impure carbonate unit (Kedahda Formation) and alaskite. The skarn zone is about 200 metres long and 50 metres wide and is, in part, covered by Cenozoic basaltic flows. The skarn contains north-northeast trending sulphide lenses up to 2 metres wide and 20 metres long. Most of the mineralization consists of pyrrhotite, chalcopyrite, sphalerite, scheelite and minor galena. Small lenses of higher grade bedded sphalerite, chalcopyrite and galena are also present.

In 1978, a 2-metre-wide sample analyzed 0.16 per cent tungsten oxide (WO3), 0.08 per cent copper, 1.24 per cent lead, 2.32 per cent zinc and a trace of gold. A 0.5-metre sample yielded 0.07 per cent tungsten oxide (WO3), 0.01 per cent copper, 0.01 per cent lead, 9.93 per cent zinc and 1.67 grams per tonne gold (Assessment Report 7282). Silver up to 154.29 grams per tonne is also reported (Assessment Report 14438).

In 1983, Cream Silver Mines Ltd. carried out a program of geologic mapping, grab sampling, soil sampling and an orientation magnetometer survey. In 1985, a work program was conducted on behalf of Cream Silver Mines Ltd. and consisted of geological mapping and geochemical sampling; a total of 205 soil samples and 6 rock, chip, or grab samples were collected and sent for analyses.

From 2006 to 2008, Adanac Molybdenum Corporation conducted diamond-drilling on the Adanac/Ruby Creek "porphyry molybdenum" property, near Atlin.

In 2016, two holes were drilled by Global Drilling Solutions on behalf of Zinex Mining Corporation on the Ruby Creek Property, targeting native gold. In 2017, Global conducted geochemical sampling, drilling and ground geophysics on this property. In 2018 Global carried out further geochemical sampling on this property.

In 2021, an airborne SkyTEM survey was conducted by Stuhini Exploration on the Ruby Creek property, which revealed a number of regional trends across the property.