The Mamu-Bravo-Kulan property is situated within the Cassiar Platform which is composed mainly of moderately faulted and folded Paleozoic miogeoclinal clastic and carbonate sedimentary rocks. The Mamu property covers a package of Mississippian volcanics and Devonian sedimentary rocks intruded by or in faulted contact with a Mississippian intrusive complex.
Preliminary exploration work was undertaken in 1995 and 1996. Coincident multi-element (Pb, Zn, Cu, Fe, and Cd) soil geochemical anomalies associated with total field magnetic anomalies indicated that the property may host VMS style mineralization associated with Mississippian felsic and intermediate volcanic rocks.