The Coyote 3 showing lies approximately 8 kilometres southeast of the village of Iskut and 4 kilometres east of Eddontenajon Lake. The showing is located in the headwaters of a narrow south-flowing stream within the highly dissected terrain of the Tanzilla Plateau.

The Coyote 3 is underlain by Lower Jurassic Hazelton Group andesitic volcanic breccias and conglomerates (Open File 1997-3). The showing comprises a quartz vein of unspecified attitude containing 5 to 6 per cent chalcopyrite and pyrite with associated malachite (2 per cent). A grab sample of the quartz vein yielded 1.29 per cent copper, 6.5 grams per tonne silver and 0.3 gram per tonne gold (Assessment Report 20689).

The area was first explored in 1929 when an adit was driven in copper mineralization on the nearby Klappan Rose property (104H 014) (presently referred to as the Hi claims). The immediate area of the showing was briefly explored by geological mapping and rock sampling in 1990. In 2005, a helicopter-borne geophysical survey was carried out on behalf of Firesteel Resources Inc. on the Rok property. The survey comprised a new tri-directional magnetic gradiometer system, and a gamma ray spectrometer system. The airborne survey was flown at 200 metre line spacings with a total survey coverage of 611.4 line-kilometres.

In 2013, OZ Exploration Pty Ltd carried out an exploration program on the ROK Coyote project area, under a Joint Venture agreement with Firesteel Resources Inc (Assessment Report 35259). OZ drilled 1740 metres in 3 three diamond-drill holes, conducted 26.5 line-kilometres of 3D offset line pole-dipole IP/resistivity surveying, completed 316 line-kilometres of airborne magnetic and radiometric surveying, and a total of 3500 hectares of geological mapping was completed. Eight MINFILE occurrences were covered by the airborne survey with 4 of these also being covered by the IP/Resistivity survey. The Coyote 3 was covered only by the airborne survey. See MFJ (104H 001), O.K. (104H 046) and B18 (104H 032) for drill results. See MFJ for further details on the 2013 work.

In 2017, Colorado Resources entered into a purchase agreement, with Firesteel Resources Ltd. to acquire a 100 per cent interest in the ROK-Coyote copper gold property. The ROK-Coyote property occurs immediately south and east on trend of Colorado’s North ROK property and immediately north and west of Imperial Metals Red Chris property.

On Sept 16 of 2020, Colorado Resources announced that it had changed its name to “QuestEx Gold & Copper Ltd.” effective September 28, 2020.