The Lost Lode occurrence is located at an elevation of approximately 1980 metres on a northeast-facing slope, approximately 250 metres west-southwest of the west end of Krao Lake.

Regionally, the area is underlain by granodioritic intrusive rocks of the Middle Jurassic Nelson Batholith. To the east 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 are exposed.

Locally, a silicified granite hosts a 0.15- to 0.30-metre-wide quartz vein with pyrite and arsenopyrite mineralization. The vein trends approximately north 20 degrees west and dips 25 to 30 degrees west.

In 1983, a rock sample from the vein assayed 0.60 gram per tonne gold and 4.6 grams per tonne silver (Assessment Report 11571).

Work History

The area was originally explored in the early 1900s with the Lost Lode, Thomson Fraction, Silver Reef claims being staked and a number of trenches being developed.

In 1983, Rodessa Minerals Corp. conducted a minor program of prospecting and rock sampling on the area.

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.