The Birch Creek Tungsten occurrence is located at the head of Birch Creek, north of the west end of Surprise Lake, about 20 kilometres northeast of the community of Atlin.

The showing is based on a tungsten occurrence shown on Geological Survey of Canada Map 1082A (Memoir 307). No work has ever been done directly related to this occurrence, although assessment work was conducted in 1984 on a property covering an area which included this locality. There was no reference to the tungsten occurrence in the Assessment Report 13643 for that work.

The showing is located in the Mount Leonard Boss which is a small stock of the Surprise Lake batholith (Surprise Lake Plutonic Suite) which is separated from the main body by a pendant of Paleozoic volcanic, sedimentary, and ultramafic rocks, all of the Cache Creek Complex. The stock is composed of a fine-grained quartz monzonite which has slightly more biotite than in most parts of the batholith. The Surprise Lake batholith is primarily an orthoclase-rich granite, is Late Cretaceous in age and has been dated at 70.6 +/- 3.8 Ma.

No description of the tungsten showing is available but if it is similar to many others in the area, it is composed of disseminated wolframite within quartz veins. These veins commonly strike northeast.

The area has been explored in conjunction with the nearby Adanac Molybdenum (MINFILE 104N 052) mine and a complete regional exploration history can be found there.

During 2016 through 2018, Global Drilling Solutions Inc., on the behalf of Stuhini Exploration Ltd., completed programs of prospecting, geochemical (rock and soil) sampling, and diamond drilling on the area as part of the Ruby Creek project.

In 2020, Stuhini Exploration Ltd. explored the area with a Mag-EM survey, prospecting, and geochemical surveying.