The Volcano claim is on Volcanic Mountain located just east of the Granby River, 16 kilometres north of Grand Forks. This is a short distance west and a little north of the Golden Eagle claim. Most of the development work on this property dates from 1900. Much of this was done on the south and southwest slopes of Volcanic Mountain and consists of numerous open cuts, stripping, and a tunnel 240 metres long near the base of the hill. On the south slope the ground is covered with a dark red loam and gravel which is evidently the result of oxidation of pyrite and pyrrhotite. At about the same elevation on the bluff to the southwest, erosion has exposed large masses of pyrite and pyrrhotite associated with garnetite, epidote and silica.

Remnants of limestone occur as thin coverings on the mineralized zone and a porphyry dike cuts through the zone. Near the bottom of the bluff, at an elevation of 655 metres, a tunnel has been driven for 240 metres in a north-easterly direction. The greater part of this tunnel was driven in porphyry but near the face highly siliceous rocks containing disseminated pyrite were encountered. A series of flat drill holes fanning from the face of this tunnel penetrated soft talcose gouge but no significant metal values were returned. In an open cut at the top of the bluff, at 985 metres elevation, massive pyrrhotite occurs together with evidence of intense metamorphism. A granodiorite stock exposed immediately southeast of the claim shows pyrite, chalcopyrite and pyrrhotite at the contact. This intrusion is believed to be the source of mineralization and local metamorphism.