The BRECCIA occurrence is located in a small southeast-facing alpine hanging valley, 1 kilometre south of Gait Peak, north of Slim Creek and approximately 22 kilometres west-northwest of the village of Gold Bridge.
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 quartz-monzonite Miocene-age Bridge River Pluton.
The Breccia Trend consists of a deeply weathered, silicified, gossanous breccia and several smaller gossans. It has an open-ended strike length of approximately 5.0 kilometres.
Locally, the zone is exposed over an area of approximately 150 by 500 metres and consists of 30 to 50 metre wide vuggy silicified zones in contact with a north-northwest trending dioritic dike. These zones are characterized by intensely silicified, pebble to cobble- sized, sub-rounded to sub-angular, fine-grained intrusive rock fragments cemented by a vuggy siliceous groundmass. Anastomosing quartz veinlets with copper sulphides (chalcopyrite?) crosscut both fragments and groundmass.
In 2012, two grab samples (M487778 and M487779) assayed 0.174 and 0.211 per cent copper, respectively, with elevated levels of arsenic, indium, antimony and zinc (Assessment Report 33341).
At this time, other grab samples (M487761 and M487775) taken from gossanous boulders located 4 kilometres to the south-southeast assayed 0.215 and 0.06 per cent copper, respectively, while another two samples (M487751 and M487752) from gossanous boulders located 6 kilometres to the east assayed 0.871 and 0.641 per cent copper, respectively.
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 in the west led to the discovery of the Bornite Trend; sampling to the north led to the expansion of the Tillworth trend, and sampling in the northeast identified the Breccia Trend. The drill program focused on the Mackenzie showing, approximately 6 kilometres southwest of the Breccia showing. Miocene's exploration focus in 2013 was on the Bornite Trend.
From 2015 through 2018 Carube Copper Corp's exploration efforts of mapping, geochemical sampling and an airborne magnetic radiometric survey focused on the Bornite Trend and then in 2019 focus was on areas within the Bornite Trend and also areas of the Breccia Trend. The Breccia Trend was again the focus in 2022 under the newly named Mount Olympus property, operated by PrometheX Ltd.
