The Twin (L.591) occurrence is located at approximately 970 metres elevation on an east-southeast–facing slope, south of Lendrum Creek and approximately 4.0 kilometres north-northwest of Ainsworth.
Regionally, the area is underlain by hornblende schists, limestone and banded quartzite of the Upper Mississippian to Permian Milford Formation and basaltic volcanic rocks of the Carboniferous to Permian Kaslo Group. Granodioritic intrusive rocks of the Middle Jurassic Nelson Batholith are exposed to the west.
The local mineralization exposed in the two adits is not described but is likely similar to the nearby Noranda (MINFILE 082FNE038) and Fergus (MINFILE 082FNE096) occurrences, comprising fracture-controlled quartz±calcite veins hosting pyrite-galena-sphalerite mineralization.
In 1996, a grab sample (90228) of galena-pyrite mineralization hosted in a narrow shear zone in schists exposed in a roadbed on the Ida C. Fraction claim, approximately 600 metres to the north-northwest of the adits, assayed 124 grams per tonne silver, 1.40 per cent lead and 9.52 per cent zinc (Assessment Report 25055).
Work History
Two adits, likely dating to the late 1800s or early 1900s, are located on the Twin (L.591) claim. Both adits are reported to be caved in. During 1951 through 1957 and again in 1969 and 1970, considerable work was done on the area by Triumph Mines Limited. Also in 1956, Highland-Bell Ltd. conducted a program of geological mapping on the area as the Big Bluff, Fred, Mar and Nick groups of claims.
In 1996, a program of prospecting and geochemical (rock, silt and soil) sampling was conducted by George Addie on the area as the Silver Hoard property.
During 2007 through 2011, Goldcliff Resource Corp. completed programs of prospecting, geological mapping, geochemical (rock, silt and soil) sampling and an airborne geophysical survey on the regionally extensive Ainsworth Silver property. In 2015, Goldcliff Resource Corp. conducted a program of prospecting, geological mapping, geochemical (rock, silt and soil) sampling and a 4.1 line-kilometre ground electromagnetic survey on the area as part of the Ainsworth Silver property.
In 2020 and 2021, Goldcliff Resource Corp. conducted a further program of geochemical (rock, silt and soil) sampling and a 508.0 line-kilometre airborne magnetic, electromagnetic and radiometric survey on the Ainsworth Silver property.
