The Red Bluff showing is located about 1.5 kilometres west of the Bear River, approximately 4.5 kilometres southwest of the confluence of Bitter Creek with the Bear River, 8 kilometres north of Stewart.
The area is underlain by variably striking and dipping Lower Jurassic Unuk River Formation (Hazelton Group) rocks comprising mainly andesitic tuffs and breccias. They are intruded by northwest trending dikes of the Mount Weller dike swarm (Open File 1987-22).
An adit was driven on a 15 metre wide, north-northwest trending zone of shearing and quartz-pyrite alteration. Within this zone, small quartz lenses and veins carry sphalerite, galena and minor chalcopyrite. A chip sample was taken from a 10 centimetre wide quartz-sphalerite-galena vein trending 300 degrees and dipping 80 degrees southwest at the portal. The sample assayed 1.3 grams per tonne gold (Assessment Report 18769). About 40 metres south of the adit, a grab sample of a quartz vein, mineralized with sphalerite, galena, chalcopyrite and malachite, assayed 1.4 grams per tonne gold (Assessment Report 18769).
Samples of wallrocks carrying disseminated pyrite and/or pyrrhotite, calcite and drusy quartz vein material from the adit dump assayed highly anomalous gold values. A selected grab sample of quartz, containing sphalerite and minor chalcopyrite, assayed 7.4 grams per tonne gold (Assessment Report 18769).
In 1923, the Red Bluff claims were acquired by the Prince John Mining Company. That year the company drove a 56 metre long adit on the showing. The Red Bluff 1-3 claims were Crown granted in 1926. No further work was reported until 1988 when Tri-Gold Industries Inc. examined the showing. In 2006, the Bay Silver claims covered the showing and are owned 50/50 by Teuton Resources Corp. and Silver Grail Resources Ltd. (formerly Minvita Enterprises Ltd.). A total of 218.0 line kilometres of a helicopter-borne AeroTEM II electromagnetic and magnetic survey was flown.