North trending quartz veins on Granville Mountain are thought to be genetically related to the intrusion of Eocene Coryell Plutonic Suite syenites into Carboniferous to Permian Mount Roberts Formation metasediments and metavolcanics, and Middle Jurassic quartz monzonites. Gold-bearing quartz vein systems occur within the quartz monzonite and average 1.2 metres thick. The north trending veins are generally steeply dipping to the east and are subparallel to two major joint orientations.

On the Berlin property, a north striking, steeply dipping fissure contains quartz lenses mineralized with galena, sphalerite, chalcopyrite and pyrite. Production in 1939 and 1940 totalled 383 tonnes yielding 21,399 grams silver and 2302 grams gold; see also Inland Empire (082ESE083).

In 1980, Boundary Consolidated Exploration Limited drilled 8 holes, totalling 1006 metres on the Albion, Berlin and Alice L. claims. Prominent Resources Corporation conducted surveys and sampling in 1985. In 1989, Boundary Gold Corporation drilled 2 holes totalling 185 metres on the Berlin claim. In 1992, Crown Resources Corp. conducted an airborne geophysical survey in the area.

In 2006, Astral Mining Corporation conducted a helicopter-borne geophysical (electromagnetic) survey on the area as a part of the JJ property.