The NBR occurrence is located 1.6 kilometres north of the North Fork of Bridge River and 47 kilometres west of the village of Gold Bridge. It is in the same vicinity as Copper Plateau (Minfile 092JW051) and Bridge River (Minfile 092JW010) mineral occurrences.

The area is primarily underlain by the Early Tertiary-age granitic Bridge River Pluton, which intrudes the Late Cretaceous quartz diorite to the southeast and a similarly aged granodiorite body, the Lord River Pluton to the north, west and southwest. The intrusive rocks are overlain by flat-lying Miocene-age basaltic flows (Garibaldi) and intruded by basalt to diorite feeder dikes and felsite, quartz porphyry and felspar porphyry dikes.

Locally, sulphide mineralization, mainly chalcopyrite and molybdenite, is strongly fracture- controlled, confined to veins and veinlets mainly within a quartz monzonite. Other sulphide minerals present include bornite, chalcocite and pyrite; oxidation products of sulphides include malachite, azurite and tenorite. Wallrock alteration is weakly propylitic, with sericite and potassic alteration associated with quartz and sulphides in, and adjacent to, veins.

In 2008, a grab sample assayed 3.38 per cent copper, 0.014 per cent molybdenum, 34.3 grams per tonne silver and 1.04 grams per tonne gold (Assessment Report 30991).

In 1970, Canex Aerial Exploration completed programs of geological mapping and an induced polarization survey, totalling 2.5 line-kilometres, on the area as the BR claims. In 1980, Amax of Canada completed a program of geological mapping, ground geophysical surveys and rock, silt and soil sampling. During 2005 through 2019, Cresval Capital Corp. completed programs of prospecting, geochemical sampling, trenching, an induced polarization survey, 2031.5 metres of diamond drilling in nine holes, an airborne magnetic and radiometric survey and a ground magnetic survey over areas of the property known as the Copper 1-25 claims, the Bridge River project and the Mike property.

In 2011,1261 metres of diamond drilling in 5 holes were completed over the Copper Plateau area, approximately 500 metres west of the NBR occurrence. A ground magnetic survey was completed over the area in 2019. Cresval changed its name to Transforma Resources Corp. in October 2021.