The Nioby 2 occurrence is located on hill, approximately 550 metres northeast of Hopo Lake.

The area is underlain by Karmutsen Formation volcanic flows, pillow lavas and tuff overlain by Quatsino Formation limestone, all of the Upper Triassic Vancouver Group. These in turn are overlain by volcanic flows and breccias of the Lower Jurassic Bonanza Group. Intruding the stratigraphy is granodiorite of the Jurassic Island Plutonic Suite.

Locally, a strong mineralized zone containing zinc-blende (sphalerite?), pyrite and occasional chalcopyrite has been partly exposed. A steeply dipping fault cuts the area, striking 15 degrees north east. In 1982, a sample (13770) yielded 17.3 grams per tonne silver and greater than 1 per cent each of copper, lead and zinc (Assessment Report 10866).

In 1982 and 1983, Jentin Resources completed programs geological mapping, geochemical sampling and five drill holes, totalling 654.3 metres, on the area as the Nioby claims. In 2004, Hillsborough Resources completed a ground magnetometer survey on the area as the Bog property. This work identified a magnetic anomaly approximately 350 metres north east of Hopo Lake on the Bog 3 and 4 claims.