At the King showing, disseminated chalcopyrite occurs within a diorite sill (gabbro) of the Proterozoic Moyie Intrusions intruded into the Helikian Kitchener Formation (Purcell Supergroup). The sulphides are concentrated within, and adjacent to northwesterly striking cross fractures in the sill. Typical of similar showings in the area, quartz is the gangue within the veins.

Prior to the work of Jasper Mining in the 2000s, the only assessment work recorded was completed on behalf of Cindy Mines Ltd in 1967 which consisted of a soil geochemical survey (Assessment Report 945), geological mapping (Assessment Report 946) and an Induced Polarization survey (Assessment Report 964). A single hole drill program was apparently undertaken in the 1970's by Walter Lizaherca (?) and regional mapping by Trygve Höy (Preliminary Map 54).

The results of the soil geochemical survey (Assessment Report 946) are available only in the form of a contoured map of Total Heavy Metals. The Induced Polarization survey (Assessment Report 964) was completed on only three north-south lines, essentially parallel to the structural fabric of the property and considered of limited use. A drill program was apparently completed in the 1970's by Walter Lizaherca (?). The drill pad is located at UTM coordinates 592785 East, 5492425 North. An old trench was located nearby. It was reported by Rick Walker (author of Assessment Report 30450) that a personal communication he had with geologist Dave Pighin (who apparently logged the hole while employed by Kootenay Exploration Ltd) that the hole intersected between 18.3 and 23.4 metres of mineralized diorite. A trench was further described being located along a fault which truncates the diorites against highly altered sedimentary strata of the Kitchener Formation.

In 2005, Jasper Mining Corporation conducted a soil geochemistry program over their Proximal claim collecting 137 soil samples every 25 metres on 11 separate east-west oriented lines straddling the known copper-bearing outcrop and accompanying trenches. Only 1 sample returned a value above the detection limit of 0.1 ppm gold; several strongly elevated values for copper were recorded. (Assessment Report 27955). A limited diamond drill program was also completed adjacent to a series of blast pits and a trench near a previous diamond drill site. Three NQ size holes completed from two set-ups, totaling 399.57 metres. A total of 46.77 metres of sedimentary strata (siltstone) was intersected, followed by 36.52 metres of copper-bearing gabbro.

In 2006, a total of 95 soil samples were collected every 25 metres on 3 separated sample lines by Jasper Mining with a further 153 soil samples collected in 2008 (Assessment Report 29241 and 30450).