The Blacktail Creek showing is located in the headwaters of Blacktail Creek near the U.S. international border in an area underlain by sedimentary rocks of the Helikian Creston Formation, Purcell Supergroup. In general, the rocks consist of siltstone, argillite, and/or quartzite.

The area is reported to encompass a large hydrothermal alteration zone exposed in recent logging road cuts. The host Creston Formation is altered to mottled, pink-salmon colour with zones of strong pervasive and fracture-controlled carbonate, chlorite, sericite, manganese, silica, goethite, magnetite, and hematite. Much of the zone is strongly leached and oxidized. Bornite was noted as fine blebs in altered sediments within a fault zone. East of the alteration zone the Creston rocks appear to be in fault contact with Kitchener Formation strata. Sulphide spotting was reported to be prevalent east of this fault in Kitchener stratigraphy.

In 2010, Kootenay Gold Inc. (later Kootenay Silver Inc.) collected 42 rock samples from the KRL (Silver Fox) claims of the Silver Fox property (Assessment Report 32181). Reconnaissance style prospecting had discovered a stratabound copper occurrence hosted in the strata. The KRL claim block was expanded to include the newly discovered showing as well as prospective stratigraphy along a favourable horizon south to the U.S. Border. The KRL (Sarah) veins were subsequently renamed to Sarah (082GSW087). Prospecting discovered several stratabound copper showings including Blacktail Creek (082GSW099), Borrow Pit (082GSW073), Jake Creek (082GSW070), Skarn Zone (082GSW103), Upper Gilnocke (082GSW100, 101), and Yahk Mountain (082GSW072).

In 2015, Kootenay Silver Inc. continued mapping in the Jake Ridge (082GSW109), KRL (Jake (082GSW070) and Snake), Oke Creek areas; the Middle block which included Yahk Mountain to Haller Creek; and the South block which included the Gilnockie (creek) to North Ward (082GSW089) area (Assessment Report 36022). Prospecting and mapping identified some alteration zones where sufficient outcrop enabled recognition to the north at Silver Pipe (082GSW058), KRL (Sarah, 082GSW087), and Jake Ridge (082GSW109). Copper mineralization was previously recognized at Jake Ridge (082GSW109), Yahk Mountain (082GSW072), Haller Creek north (082GSW103), and Ward Creek (082GSW105). Also in 2015, Kootenay Silver collected 229 rock samples and conducted prospecting. Prospecting was focused on three areas during the program, from north to south they were the Jake Ridge (082GSW109), Yahk Ridge (082GSW072), and Ward Creek (082GSW105) areas (Assessment Report 35769 and 36064). Several small copper showings were documented and subsequently added to MINFILE (see 082GSW099 to 110).

See North Ward (082GSW089) for details of the Silver Fox property.