The COPPER 6 occurrence is located near a small creek on a plateau to the west of Thunder Creek, a south-flowing tributary emptying into the North Fork of Bridge River. The showing is approximately 4.4 kilometres southeast of Mt. Loes and 44 kilometres west of the village of Gold Bridge. It is in the north-central region of the Bridge River project property (Cresval Capital Corp.).
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, four zones (Showing #3, Contact, Windy and West) of mineralization are exposed near the contact with the overlaying Miocene basalts over an area of 400 by 1000 metres. The zones consist of a mineralized quartz stockwork hosted by silica and sericite-altered granites of the Bridge River pluton. Mineralization consists of chalcopyrite, bornite and tetrahedrite. The zones are west-dipping and primarily north to northwest trending, 025 to 040 degrees.
A historic sample, from 1931, is reported to assay an average of 3.36 per cent copper over 9.1 metres from four samples; while a 24.5 metre open cut across the zone yielded 0.44 per cent copper (Assessment Report 28271).
In 2008, a grab sample from the Showing #3 zone yielded values up to 5.31 per cent copper, 0.076 per cent molybdenum, 88.3 grams per tonne silver, 0.31 gram per tonne gold and 0.194 per cent antimony. A sample from the Contact zone, 200 metres northeast of the Snowfield Copper occurrence assayed 0.22 per cent copper, 0.006 per cent molybdenum, 15.8 grams per tonne silver and 0.106 per cent antimony over 0.8 metres (Assessment Report 30991).
In 2012, sampling immediately to the west of the known occurrences along a 350 metre long north trending zone of copper mineralization, yielded values up to 1.53 per cent copper, 0.20 per cent molybdenum, 9.2 grams per tonne gold and 52.3 grams per tonne silver (Sample 15405; Assessment Report 32065).
The area was originally explored by Cominco in the 1930’s. 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 2010, a 400 by 350 metre copper soil anomaly was delineated over the Contact and Showing #3 zones and a 550 by 125 m gold- arsenic-zinc soil anomaly at the Windy zone, northwest and peripheral to the Contact zone. Cresval changed its name to Transforma Resources Corp. in October 2021.