The Matajur (B Zone) occurrences are located north of Security Inlet, on the east side of Mackenzie Cove and at an approximate elevation of 152 metres.

The area is underlain by Upper Triassic Karmutsen Formation (Vancouver Group) greenstone, basalt and minor limestone, which dip moderately to the north and have been intruded by quartz dioritic rocks of the Early Pennsylvanian Chaatl Inlet pluton. Thinly bedded sediments, possibly of the Jurassic to Triassic Kunga Group, outcrop in the vicinity along the northeast side of Mackenzie Cove.

Locally, three closely spaced mineralized outcrops occur on a broad ridge 150 to 200 metres northeast of Mackenzie Cove. The most significant of these consists of a 10 by 10-metre outcrop of clay-altered pyritic volcanic containing abundant massive pyrrhotite and pyrite with traces of chalcopyrite. The second zone consists of a 5 by 5-metre zone of pyrrhotite- and pyrite-rich gossan, 50 metres northeast of the first. The third zone consists of pyritic epidote skarn hosted in a small pod of white marble, 35 metres west of the main showing. Bornite is reported in the area. To the south, two other zones of mineralization are reported. These consist of sphalerite mineralization in epidote-garnet skarn alongside a marble.

Two other copper occurrences are reported on the north side of a small cove approximately 1.2 kilometres to the east-northeast and on a point, approximately 1 kilometre to the southwest, across Security Inlet.

In 1963, the average of samples from five short drillholes yielded 0.6 per cent copper and 0.6 per cent zinc (Property File - Cariboo Gold Quartz Mining Co. Ltd. [1963-10-09]: Preliminary Report - Hood, Rod, Bill and Young Showings).

In 1990, a chip sample (D7) of weathered material collected over the 10 by 10-metre area of the first zone assayed 1.47 per cent copper; another chip sample (D8) from the second zone assayed 0.91 per cent copper (Assessment Report 20330).

The Waddington Mining Corporation Limited held nine claims in this vicinity in 1953. In 1963, Cariboo Gold Quartz Mining examined and sampled the area. Placid Oil Company held the property as the Young and Rod groups in 1965. A geophysical survey was carried out at the time. The area was prospected and sampled by Doromin Resources in 1990. Inco Exploration and Technical Services flew airborne VLF and magnetometer surveys over the region in 1992.