The Tuya 2 occurrence is located in a tributary creek to Tuya River, about 57 kilometres west of the community of Dease Lake. Visible gold grains were observed in three of four panned concentrate samples taken from the tributary creek.
The showing area is underlain by an Early-Middle Jurassic(?) syenite body. The syenite is white and is altered, in part, to kaolinite. A small upper Mississippian-Permian serpentinite body of the Cache Creek Complex is exposed downstream from the syenite. The serpentinite exhibits strong carbonate alteration with dolomite, talc, ankerite and fuchsite present. Downstream from the serpentinite, interbedded phyllite, greywacke and conglomerate of the Lower Jurassic Inklin Formation (Laberge Group) strike north and dips moderately east. These rocks are intruded by granodiorite dikes.
In 1991, a panned concentrate sample (14966) taken downstream from the carbonate alteration associated with the syenite intrusion yielded visible gold and analysed 3.1 grams per tonne gold (Assessment Report 21850).