The Brad (Madhat) occurrence is located in the southern headwaters of Mahatta Creek, at an elevation of approximately 350 metres.

The area lies within the Insular Belt and is underlain mainly by volcanic and crystalline rocks and minor sediments. Andesitic to rhyodacitic lava, tuff and breccia of the Lower Jurassic Bonanza Group overlie an assemblage of sediments of the Paleozoic Sicker Group and basalts and minor carbonate and clastic sediments of the Upper Triassic Vancouver Group. The Bonanza Group volcanic rocks are coeval with, or genetically related to granodiorite stocks of the Jurassic Island Plutonic Suite. These granodiorites intrude all rocks in the area.

At the occurrence, sediments of the Parson Bay Formation (Vancouver Group) form a west plunging syncline surrounded by basaltic and andesitic flows of the Karmutsen Formation (also Vancouver Group). At the nose of the fold two small sections of calcareous sediments of limited extent have been altered to skarn by a nearby diorite intrusion.

Locally, the skarn contains small pods of pyrite and chalcopyrite. Minor chalcopyrite and pyrite occur in quartz veins. Assessment Report 2652 also reports weak disseminated and fracture-controlled chalcopyrite and pyrite in diorite and Bonanza Group sediments.

Work History

In 1970, BHP-Utah Mines completed a program of geological mapping and soil sampling on the area as the Brad Group. In 2014, Homegold Resources Ltd. completed an airphoto geological interpretation program on the area as the Kluska 2 claim. In 2019, First Geolas Consulting completed a minor program of prospecting and rock sampling on the area as the Nic property.