The Wyy Lo’oop prospect is located approximately 19 kilometres east-northeast of the town of Stewart in northwestern British Columbia. The Wyy Lo’oop prospect forms part of the larger Red Mountain property, which is approximately 600 metres to the west. Much of the geological setting of the Wyy Lo’oop prospect is considered similar to that of Red Mountain (see MINFILE 103P 086 for expanded description).
The Red Mountain property is situated at the western margin of a broad, north-northwest trending volcano-plutonic belt composed of the Upper Triassic Stuhini Group and the Lower-Middle Jurassic Hazelton Group. This belt has been termed the "Stewart Complex" by Grove (1986) and forms part of the Stikine Terrane. To the west, the Stewart Complex is bordered by the Eocene Coast Plutonic Complex. Sedimentary rocks of the Jurassic-Lower Cretaceous Bowser Lake Group overlay the complex in the east.
Red Mountain, an extensive gossan located between Bromley Glacier and Cambria Icefield, is underlain by pyroclastic and sedimentary rocks of the Hazelton Group (Unuk River and Salmon River formations) which have been intruded by Middle Jurassic as well as Early Tertiary stocks and dike swarms. The younger intrusive sequence forms part of the Coast Plutonic Complex.
In 2014, IDM Mining Ltd. optioned the Red Mountain property from Seabridge Gold Inc., and conducted a widespread exploration campaign including geological mapping, rock sampling, soil sampling, channel sampling, drilling, and historic core re-logging and sampling.
Recession of the Cambria Icefield east of Red Mountain has allowed for examination of the exposed rock units and has revealed a broad zone of mineralization termed the Cambria Zone. Geological mapping of the Cambria Zone in 2014 noted that the area is underlain by folded sedimentary rocks including mudstone, siltstone, sandstone, and conglomerate. The conglomerate unit is especially thick at the Cambria Zone, and hosts a significant number of thick pyrite veins. Bedded sedimentary units occur north and south of the thick conglomerate unit and the finer-grained lithologies exhibit open to slightly isoclinal folding. Veins in the Cambria Zone are dominated by pyrite and pyrrhotite, are centimetre to 1 metre (plus) in scale, and generally trend north-south over a strike length of 1 to 10 metres. Veins are hosted in a polymict conglomerate and two zones of volcaniclastic/tuff, which are dominated by hornblende-phyric clasts and matrix (Assessment Report 35505).
Channel sampling in 2014 discovered the Wyy Lo’oop showing, consisting of a massive pyrite-pyrrhotite vein with patchy chalcopyrite. The vein is hosted in a volcanic conglomerate unit, surrounded by fine-grained sedimentary rocks. Results of the channel sampling range from 0.25 gram per tonne gold to 15 grams per tonne gold (samples approximately 1 metre long) (Assessment Report 35505).
Following up on the results of the channel sampling, two drill holes totalling 238 metres were completed from one drill set-up at the Wyy Lo’oop prospect. Drillholes CB14-003 and CB14-004 encountered a volcanic conglomerate unit with porphyritic clasts, and intersected semi-massive pyrrhotite, pyrite, chalcopyrite veins and veinlets, which locally contain sphalerite and arsenopyrite. The main mineralization in CB14-004 notes that mineralization is characterized by pyrrhotite replacing the matrix in the conglomerate. A third drillhole, CB14-005 totalling 106 metres, was drilled 70 metres north of CB14-003 and CB14-004. Drillhole CB14-005 encountered bedded, medium-grained, carbonate-rich siltstone, and a tuff-matrix conglomerate with hornblende phenocrysts, and intersected a massive pyrrhotite-pyrite-chalcopyrite-arsenopyrite vein. Results from the initial drilling at Wyy Lo’oop include 0.9 metre grading 1.88 grams per tonne gold (drillhole CB14-003), 7.88 metres grading 0.99 gram per tonne gold (CB14-004), and 1.5 metres grading 1.49 grams per tonne gold (drillhole CB14-005) (Assessment Report 35505).
