The Snafu showing is located approximately 13 kilometres south of Aiyansh, immediately south of the Nass lava field. The area was periodically explored for molybdenum deposits in the 1960s.

The area is underlain by Middle Jurassic to Upper Cretaceous Bowser Lake Group argillaceous sediments intruded by a quartz feldspar porphyry stock of the Tertiary Coast Plutonic Complex. Several molybdenum showings occur along the northern limit of the Ponder pluton and the Snafu is one of these. Alaskite dikes follow fractures in the porphyry and northwest striking diorite dikes cut both the intrusion and sediments. The sediments have been hornfelsed in the vicinity of the intrusive contact.

Molybdenite mineralization occurs primarily in northeast and northwest-trending fractures and quartz veinlets in the porphyry, alaskite and hornfelsed sediments along the west contact of the stock. Minor molybdenite occurs disseminated in the stock. Alteration consists of minor silicification and replacement of feldspar adjacent to quartz veinlets. Hornfels and slate contain disseminated pyrite, minor pyrrhotite and trace chalcopyrite. Rare chalcopyrite also occurs in wider more continuous quartz veins.

In 1966, Nass River Mines Ltd. completed 7.5 kilometres of induced polarization and resistivity surveying over the Valley-Ridge-Snafu claim groups.