The Bornite South East trend occurrence is located on a ridge to the northeast of Nichols Creek and at an elevation of approximately 2400 metres.

The area is underlain by biotite-hornblende-quartz-diorite of the Hurley River Pluton, which is assigned to the Late Cretaceous Scuzzy Plutonic Suite of the Coast Batholith. This is near the western edge of the Miocene Bridge River Pluton.

The Bornite trend consists of scattered quartz veins hosting bornite, chalcocite, magnetite and lesser chalcopyrite and tetrahedrite as veins and stringers up to 0.2 metre wide and over an open ended strike length of 7.5 kilometres.

In 2012, a grab sample (M487886) from the south east end of the Bornite trend assayed 0.98 per cent copper, 1.28 per cent lead, 1.00 per cent antimony and 4170 grams per tonne silver, while another grab sample (M487887) from a short distance to the south east assayed 0.132 gram per tonne gold, 1.92 per cent copper and 315 grams per tonne silver (Assessment Report 33341).

In 2010, Miocene Metals Inc. optioned the property and completed 1227 line-kilometres of combined airborne magnetic and gamma ray spectrometer surveys over area. The following year, a minor rock sampling program was completed.

In 2012, Miocene Metals Inc. expanded the Mackenzie property from 36.3 square kilometres to 299.03 square kilometres, and followed the expansion with a program of geochemical sampling and a two-hole drill program. Sampling to the west led to the discovery of the Bornite trend; sampling to the north led to the discovery of the Tillworth trend, extending approximately 13 kilometres and sampling to the northeast identified the Breccia trend. Together with the original discovery and Mackenzie (MINFILE 092JW 043) occurrences these define a zone of mineralization that extends approximately 12 kilometres outwards from the contact of the Miocene Bridge River Pluton. The drill program focused on the Mackenzie showing.