The Lady Luck developed prospect is situated at the end of the Largo Mine Road on the southwestern side of Magnum Creek, 2 kilometres northwest of its confluence with Delano Creek in the Muskwa Ranges in the Northern Rocky Mountains (Geology, Exploration and Mining in British Columbia 1971, Figure 11).
The occurrence is in a region known as the Muskwa Anticlinorium, a major north-northwest–trending structure characterized by moderate folding and thrust faulting. The structure consists of Middle Proterozoic (Helikian) rocks of the Muskwa Assemblage, as well as Paleozoic rocks (Geological Survey of Canada Map 1343A; Geological Society of America, Geology of North America, Volume G-2, pages 111, 639). All belong to Ancestral North America (Geological Survey of Canada Map 1713A). Northeast- to northwest-trending Proterozoic diabase dikes are common in the region.
The occurrence is hosted in interbedded, dark grey dolostone and slate of the Aida Formation of the Muskwa Assemblage (Geology, Exploration and Mining in British Columbia 1971; Geological Survey of Canada Memoir 373). Locally, bedding strikes north-northeast and dips moderately east. Copper mineralization occurs in a number of quartz-carbonate veins, which strike north-northeast to north-northwest and dip gently to steeply west (Geology, Exploration and Mining in British Columbia 1971). The Lady vein system trends north-northwest (Assessment Report 3535, page 14). The veins range in width from a few centimetres to approximately 90 centimetres. High assays have been obtained from the surface showings, but in general chalcopyrite is discontinuously and irregularly distributed in the veins; many are barren. The veins were followed southwards underground for approximately 200 metres before being truncated by a system of branching diabase dikes.
Work History
Underground development in 1969 and 1970 consisted of approximately 300 metres of drifts and crosscuts, and a 78-metre raise (Geology, Exploration and Mining in British Columbia 1969, 1970). In 1971, Churchill Copper Corp. completed a program of geological mapping and rock sampling on the area.
Also, during 1969 through 1972, Great Northern Petroleums and Mines Ltd., Mundee Mines and Vallex Mines completed programs of geological mapping, soil sampling, a 20 line-kilometre ground magnetic survey and an airborne magnetic survey on the area immediately south of the occurrence as the Lee, Ole, Shaw and Marg claims. In 1976, J.E. Irwin carried out prospecting and minor trenching on the area as the Jed 2 claim. In 1979 and 1980, Halferdahl & Associates Ltd. completed a regional program of soil sampling on the area as the Tuchodi property.
In 2005, Aries Resource Corp. examined the area as part of a regional survey of copper occurrences. Two select rock samples of massive chalcopyrite in quartz-carbonate veins in black shale waste rock were taken from the adits yielding 6.71 and 18.8 per cent copper, respectively (Harrington, E. [2019-07-31]: Technical Report on the Churchkey Property).
Also in 2005, Twenty-Seven Capital Corp. completed a regionally extensive program of geochemical (rock, silt and soil) sampling and a 9002.0 line-kilometre airborne magnetic survey on the area as the Muskwa property (Assessment Report 28281). In 2006, Bradford Mineral Explorations Ltd. conducted 4467.0 line-kilometres of airborne magnetic and electromagnetic surveys on the area as the Trident property.
During 2017 through 2019, Fabled Copper Corp. completed programs of prospecting, geological mapping, rock sampling and a ground electromagnetic survey on the area as the Churchkey property. In 2021, Fable Copper Corp. completed a program prospecting, rock sampling and UAV photogrammetry surveys on the Church-Key-Neil property. A composite grab sample (D723003) along 4.6 metres of vein assayed 14.3 per cent copper (Assessment Report 39913).
