The Bow 15 showing is located just west of Haimila Glacier, approximately 6.5 kilometres south of the Bowser River. The showing was discovered during reconnaissance exploration by Brucejack Gold Ltd. on the Bow 15 claim in 1988.
The area is underlain by Hazelton Group rocks that comprise the Lower Jurassic Betty Creek Formation and Middle-Upper Jurassic Salmon River Formation (Bulletin 63). Southeast-trending faults are conspicuous in the area. The mineralization may be hosted by the Lower to Middle Jurassic Mount Dilworth Formation (Hazelton Group) (Assessment Report 20089, page 2).
Mineralization comprises a quartz stockwork in green, altered volcanics. Quartz veinlets, up to 40 centimetres wide, occur. There are no visible sulphides in the quartz, but pyrite is disseminated (1 to 2 per cent) in the volcanic rock. The hostrocks are limonite stained (Assessment Report 18820). A composite chip sample over a 1 square metre area (sample TCGR-4) assayed 1.2 grams per tonne silver and 3.4 grams per tonne gold (Assessment Report 18820).
In 1990, a geochemical program and airphoto interpretation on the Bow claims was conducted on behalf of Marlin Development Ltd. The geochemical program consisted of analyzing 149 rock and 456 silt samples collected during 1987 and 1988 programs.