The Iron King 7 showing is situated on the east side of the Thompson River, 3.2 kilometres south of Highway 3 and 11.3 kilometres east of Creston at 1173 metres elevation.

Regionally, the area is underlain by the Middle Proterozoic Purcell Supergroup, a thick succession of siliciclastic and lesser carbonate rocks. The Purcell Supergroup is well known for hosting a number of significant deposits including the Sullivan (MINFILE 082FNE052) sedimentary exhalative lead-zinc deposit and the Troy copper-silver deposit in Montana.

The claim area is underlain by the Aldridge Formation, the lowermost division of the Purcell Supergroup. The Aldridge Formation is composed of turbiditic siliciclastic rocks, quartzofeldspathic wacke and siltstone and numerous gabbro sills and/or dikes of the Middle Proterozoic Moyie intrusions.

Mineralization is hosted by a metadioritic Moyie sill. The sill occurs within the Aldridge Formation and dips 20 degrees southeast. The Nikco 7 showing, situated to the northeast, is believed to be a more western exposure of the same mineralized sill.

As of late 1976, 10 pits had been blasted along a 244-metre (800-foot) strike length and 21.3-metre (70-foot) vertical distance. The pits ranged in size from 1.8 to 4.6 metres (6 to 15 feet) deep and 3 to 9.1 metres (10 to 30 feet) wide.

Mineralization was discovered in 1966 or 1967 by Arthur Johnson, who subsequently staked a variety of claims over the area. Johnson conducted several prospecting programs and sent property submissions and grab samples to a variety of mining and exploration companies.

The Iron King #7 claim was staked by Johnson in November 1975. In 1976, G.W. Laforme of Chevron Standard Limited visited the Iron King property. Laforme collected eight chip samples from the existing pits and two grab samples from Pit #8 and the south side of Sullivan Creek.

Cominco, Phelps Dodge Mining Corporation of Canada and Echo Bay Mines visited the property and conducted superficial examinations sometime prior to Chevron Standard Limited’s visit in 1976. According to field notes taken by Chevron staff in 1976, Echo Bay Mines visited that year and collected five samples, and Comino and Phelps Dodge collected at least one sample each on an unknown date.

In 1979, Cyprus Anvil Mining Corporation visited the property and collected three grab samples, which returned variable copper and low-grade nickel values. Based on the sample results, Cyprus Anvil declined any further involvement in the property.

Chip samples collected by Chevron Standard Limited in 1976 assayed up to 0.4 gram per tonne gold, 2.3 grams per tonne silver, 0.5 gram per tonne platinum, 0.5 per cent copper and 0.12 per cent nickel (Property File, Laforme and Chevron Standard Ltd. Minerals Staff, October 21, 1976, pages 6 to 7). Significant results from samples collected the same year by Echo Bay Mines included Sample 1 with trace gold and 1.1 per cent copper, Sample 2 with 1.56 per cent copper and 0.4 per cent nickel and Sample 4 with 0.95 per cent copper (Property File, Laforme and Chevron Standard Ltd. Minerals Staff, October 2, 1976, page 2). One sample collected by Cominco assayed 1.3 per cent nickel (Property File, Laforme and Chevron Standard Ltd. Minerals Staff, October 2, 1976, page 3).

Three grab samples collected by Cyprus Anvil Mining Corporation in 1979 assayed up to 0.83 per cent copper and 0.12 per cent nickel (Property File, Johnson, Jennings and Simpson, April 10, 1979, page 8).

During 2004 through 2012, Eagle Plains Resources Ltd. completed programs of geological mapping, geochemical (soil and rock) sampling and airborne geophysical surveys on the area as apart of the Iron Range property. A completed property exploration history can be found at the O-Ray (MINFILE 082FSE017) occurrence.