The El Amino showing is located on Sulphide Creek, 75.5 kilometres southeast of Prince Rupert, B.C. and 66.7 kilometres southwest of Kitimat.

The area is underlain by part of the north trending Ecstall Pendant, a metavolcanic-metasedimentary belt within the Central Gneiss Complex. The belt is approximately 8 kilometres wide and trends 170 degrees. It is bounded to the west by the Ecstall Pluton and to the east by the Quottoon Pluton, which are part of the extensive Coast Range Intrusive Complex.

The Ecstall Pendant consists mainly of hornblende-plagioclase amphibolites with lesser amounts of quartzite, marble, migmatite and granitoid rocks of late Paleozoic or early Mesozoic age. These rocks have been metamorphosed to the amphibolite facies and are locally migmatitic along pluton margins.

A massive sulphide horizon outcrops on Sulphide Creek. Mineralization is hosted by quartzite and limy siltstone which has been folded into a tight antiform. Stratigraphy strikes at 258 degrees and dips 70 degrees east. The lensoid horizon measures 30 by 1.4 by 3 metres.

Mineralization consists of pyrrhotite, chalcopyrite, minor sphalerite, galena and disseminated pyrite. The gangue consists of either calcite or silica.

A sample containing massive sulphides, pyrrhotite and chalco- pyrite taken over 1.4 metres from the fold-nose in 1988 assayed 0.888 per cent copper, 0.5 per cent zinc and 15.9 grams per tonne silver (Assessment Report 17682 p.8).

A 60-centimetre-wide mineralized zone, hosted in dark quartzite, was discovered in 1991 approximately 700 metres north of the original showing. Sphalerite, chalcopyrite, pyrite and galena are reported exposed along a 1.5-metre strike length (Assessment Report 22391).

The El Amino showing was included in the 2019 airborne VTEM survey over Kingfisher Resources Ltd.'s Ecstall property. The airborne survey was aimed at detection of structures and/or conductors related to potential Cu-Au-Zn-Ag VMS-style mineralization (Assessment Report 39155).