The Viva past-producer is located north of the Koksilah River, near Hunes Creek.
The area is underlain predominantly by bedded chert and cherty basaltic tuffs of the Mississippian to Pennsylvanian Fourth Lake Formation (formerly the Sediment-Sill Unit of Muller), Buttle Lake Group. These are overlain by limestone, bedded chert and cherty tuff of the Upper Pennsylvanian to Lower Permian Mount Mark Formation, Buttle Lake Group (formerly the Buttle Lake Formation). These Paleo- zoic rocks are intruded by numerous dykes of feldspar porphyritic dacite and rhyolite and part of the granodioritic "Koksilah" stock of the Early to Middle Jurassic Island Plutonic Suite (formerly called the Island Intrusions).
The Viva is a skarn deposit consisting of pods of pyrrhotite, pyrite, magnetite and chalcopyrite occurring along fractures within chert. The chert is also cut by epidote-filled fractures.
By 1916, a shaft 10.7 metres deep and a drift 14.6 metres long had been developed on the deposit and 217 tonnes of ore had been shipped. From this shipment, 995 grams of silver and 5,575 kilograms of copper were recovered (Mineral Policy data).
In 1983 through 1985, Reward Resources completed programs of prospecting, geochemical sampling and ground geophysical surveys on the Independence, Koksilah, Pacific Star and Western mineral claims. A 2.3 metre chip sample along the north wall of the shaft assayed 0.28 per cent copper, 0.01 per cent zinc and 2.74 grams per tonne silver (Assessment Report 13997). In 1986, Hollycroft and Nexus resources completed a program of geological mapping and rock sampling on the Sil claims.