The Cavalier magnetite occurrence lies within a belt dotted with about 9 similar occurrences that extend from the Zeballos River for about 8 kilometres in a northwest direction.

The Cavalier occurrence consists of several small lenses of massive magnetite with considerable pyrrhotite. The mineralization lies along the contact between diorite of the Jurassic Island Plutonic Suite Zeballos stock and Upper Triassic Vancouver Group Quatsino Formation limestone. The occurrence is similar to the Churchill (092L 031), which is located 1.5 kilometres to the north. Several open cuts have exposed mineralization measuring to 0.5 by 2.0 metres, striking northwest and dipping 60 degrees southwest. A float sample assayed 35.67 per cent iron (Property File - 1:3600 Geology Map, not dated).