The Copper King occurrence is situated on a north-trending ridge approximately 5.2 kilometres northwest of Claw Mountain about 261 kilometres northwest of the community of Germansen Landing. Mineralization was first documented in the area in 1974 by Union Miniere Explorations and Mining Corporation Limited.

The Copper King area is situated within a Mesozoic volcanic arc assemblage which lies along the eastern margin of the Intermontane Belt, a northwest-trending belt of Paleozoic to Tertiary sediments, volcanics and intrusions bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins.

Devonian-Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Stuhini Group andesite flows and pyroclastic rocks. These Stuhini rocks have been intruded by plutons and other bodies of the mainly granodiorite to quartz monzonite Early Jurassic Black Lake Suite and are in turn unconformably overlain by or faulted against Lower Jurassic calcalkaline volcanics of the Toodoggone Formation (Hazelton Group).

The dominant structures in the area are steeply dipping faults which define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high angle, northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

The Copper King prospect is underlain by Stuhini Group porphyritic andesite, porphyritic basalt, agglomerates and tuffs. All of the units have undergone weak propylitic alteration; epidote and chlorite are ubiquitous. Hematite and magnetite are found disseminated throughout the volcanic units. Sheared and fractured zones are abundant and are associated with limonite and minor albite alteration of the wallrock. The prospect consists of a zone of disseminated and fracture vein-controlled chalcocite, malachite and pyrite. The zone has a maximum dimension of 150 metres by 10 metres, trends 125 degrees and contains many close-spaced quartz-calcite veins and associated clay alteration. The veins have an approximate attitude of 120 to 125 degrees dipping 65 degrees to the north.

Four chip samples across 0.25 to 0.30 metre assayed an average of 2.43 per cent copper, 50 grams per tonne silver, and 0.09 gram per tonne gold (Samples 27, 28, 29, 30, Assessment Report 12871). A grab sample of this material assayed 43.86 grams per tonne silver, 0.25 gram per tonne gold, and 3.96 per cent copper (sample 84-CK-31, Assessment Report 12871).

In 1964, Canadian Superior Exploration Limited staked chalcocite-bornite mineralization in fractures in Stuhini andesite south of the Chukachida River. The mineralization was investigated by trenching in 1965 under a joint venture by Canadian Exploration, Canadian Superior and Asbestos Corporation. Kennco Explorations (Western) Ltd. staked the Nama and McNamera claims in this area in 1968 and carried out a program of prospecting and silt sampling. During this work a claim post was found with a carved date 1931.

Subsequently the area was restaked by Union Miniere Exploration Ltd. and geological, soil geochemical, magnetometer and diamond drilling programs were carried out from 1973 to 1975 with this work recorded in Assessment Reports 4745, 5230, 5242, 5635 and 5657.

In 1983, a 4-person crew staked the Copper King and Namera IV claims and conducted a geological prospecting and rock chip sampling program for Western Horizons Resources; 22 rock samples were collected.

In 1986, the Silver Glance and Silver Bluff claims were staked and the owner-operators did prospecting, rock and soil geochemistry and geological mapping (Assessment Report 16140). The Silver Glance claims covered the Copper King and Chuck (094E 019, located 1.1 kilometres south) occurrences. In 1990, the Silver Glance and Silver Bluff claims were transferred to Electrum Resource Corp. Electrum undertook a program of rock chip and stream sediment sampling (Assessment Report 20729).

In 2001, Electrum Resource Corp. staked the Tan Claims and did a 1-day reconnaissance of the property. Electrum collected 9 rock chip samples, 5 soil samples and 1 stream sample. In 2007, Electrum collected 122 soil, 11 silt and 9 rock samples from the Tan 1-4 claims. The claims covered the Chuck (094E 019), Claw (094E 046), Goat (094E 062), and Copper King mineral occurrences.

In 2017 and 2018, Evergold Corp. completed programs of prospecting, geochemical (soil and rock) sampling and an airborne geophysical survey on the area as the Golden Lion property.