The Broadview deposit is at 1920 metres elevation on the east slope of Great Northern Mountain. It is at the head of Broadview Creek, a minor tributary that flows to the east into Ferguson Creek approximately 2.5 kilometres north of Ferguson. The Broadview (L.1550) tenure is one of several crown-granted mineral claims that straddles the border between NTS Mapsheets 82K/11 and 82K/12. The tenure cluster also covers the Blue Bell [082KNW060], Great Northern [082KNW061], St. Elmo [082KNW062] and True Fissure [082KNW030] mineral occurrences. The latter is to the northwest, of the Broadview, across Broadview Creek. The Broadview Group was originally known as the Great Northern Group and/or the Alpha Group.

The Lillooet, Fraser River and Cariboo Gold Fields Company Limited worked on the property between 1895 and 1897. No further work was reported until 1905, when it was bonded by a local syndicate. In September 1906, the Broadview was acquired by Ohio Mines Development Company Limited and small-scale, intermittent operations were carried on by the company, or lessees, until 1909. At that time, the developments appear to have comprised 150 metres of tunnel in 5 adits between elevations of 1680 and 1800 metres, a 30-metres deep shaft, and, on the Old Sonoma claim, a shaft with 18-metres of drift. The Ohio Mines Development Company Limited shipped 66 tonnes of hand picked ore containing 1.71 grams per tonne gold, 1371 grams per tonne silver and 38 per cent lead from the upper shaft in 1909 and 1910 (GSC MEM 161).

Comara Mining & Milling Company, Limited acquired 21 claims, including the Broadview and True Fissure, in 1946. The combined property was then passed to Columbia Metals Corporation, on its incorporation, in March 1949. The land package was later extended to 43 claims. In 1955, Yellowknife Bear Mines Limited drilled four diamond drill holes, totaling 457 metres, from surface. However, control of the property reverted to Columbia Metals the following year. In 1968, an induced polarization survey was carried out and considerable drilling was done from the No. 3 level in an attempt to find parallel veins. A further five holes were drilled adjacent to the Broadview shaft in 1972, but two were abandoned before their target depths. The remaining three intersected a mineralized quartz-carbonate zone in the footwall of one of the old stopes.

The Trout Lake area is underlain by a thick succession of sedimentary and volcanic rocks of the Badshot Formation and Lardeau Group near the northern end of the Kootenay arc, an arcuate, north to northwest trending belt of Paleozoic and Mesozoic strata that is now classified as a distinct, pericratonic, terrane. The arc rocks are bordered by Precambrian quartzite in the east and they young to the west, where they are bounded by Jurassic-age intrusive complexes. They were deformed during the Antler orogeny in Devonian-Mississippian time and were refolded and faulted during the Columbian orogeny, in the Middle Jurassic. A large panel, the "Selkirk allochthon", was later offset to the northeast by dip-slip motion along the Columbia River Fault.

The Badshot Formation is composed of a thick Cambrian limestone that is a distinctive marker horizon in the Trout Lake area. It is underlain by Hamill Group quartzite and it is overlain by a younger assemblage of limestone, calcareous, graphitic and siliceous argillite and siltstone, sandstone, quartzite and conglomerate, and also mafic volcanic flows, tuffs and breccias, all of which belong to the Lardeau Group. The rocks are isoclinally folded and intensely deformed, but only weakly metamorphosed. They occur as intercalated beds of marble, quartzite and grey, green and black phyllite and schist. Fyles and Eastwood (EMPR BULL 45) subdivided the group into six formations (Index, Triune, Ajax, Sharon Creek, Jowett and Broadview) of which the lowermost (Index) and uppermost (Broadview) are the most widespread. The Triune (siliceous argillite), Ajax (quartzite) and Sharon Creek (siliceous argillite) are restricted to the Trout Lake area. The Jowett is a mafic volcanic unit.

The True fissure and related deposits are in grits and phyllites of the middle division of the Broadview Formation in the core of a major anticline that is believed to be a large drag feature on the southwest limb of the main Silver Cup Anticline. The mine area is on the southwest side of the Cup Creek Fault, near the axis of the drag fold anticline, which strikes and plunges to the northwest. The area has been subdivided into four structural blocks by later faults. It is cut by the Great Northern Fault, a sinuous, north striking and relatively shallow east dipping reverse fault that separates the mine geology into eastern and western blocks. Both sides of the fault are disrupted by movement on the Broadview Fault, a younger, northeast trending structure. Most of the mineralization is in graphitic schist in the footwall of the Great Northern Fault. The geology of the mine area is described by Fyles and Eastwood (EMPR BULL 45). The Great Northern Fault is a gouge and breccia zone of variable width that has been more or less injected with quartz and carbonate and a lens-haped vein of quartz and carbonate follows the footwall of the fault for 365 metres from Fissure Creek to the True Fissure No. 1 adit, and may continue south to the Great Northern mine workings. The hanging wall of the vein is sharp but the footwall is locally highly diffuse. The vein is defined as containing in excess of 50 percent quartz and carbonate. In some places the vein splits into several strands that are separated by quartz vein stringers in crushed country rock. The vein consists of massive, crushed, quartz and coarse-grained, buff coloured, ankerite and siderite. In the True Fissure mine, the "vein" may average approximately 10 metres in width but the siliceous upper portion may be only half that. Vugs lined with quartz crystals occur but are not common. The sulphide minerals are pyrite, sphalerite, galena, chalcopyrite, argentiferous tetrahedrite and possibly bournonite. They appear to have been introduced after the gangue.

The Broadview mine is south of the Broadview Fault. The area is underlain by grits and black phyllites of the middle division of the Broadview Formation. The rocks are broken and cut by numerous shears and faults that strike in a variety of different directions. The rocks are injected and cemented by lenses and veins of quartz with a minor amount of carbonate, mainly ankerite. Diamond drill core shows that there is abundant vein quartz over an interval of 122 metres but the greatest concentration is in the central part of the section. Massive quartz and ankerite is well exposed in the shafts, between the Nos. 2 and 3 adits and in the outer part of No. 4 level and may form a more or less continuous vein. However, the area lacks the well defined continuity of shear zone and gouge found at the True Fissure [082KNW030] mine. It is a broad zone of recurrent fracturing and veining that has a strike of 160 degrees and dips at 70 degrees to the northeast. The zone can be traced for a surface distance of 300 metres and an elevation difference of 100 metres. It has a fairly well defined hanging wall and a diffuse footwall. Within it, there are numerous large and small veins, some of which are mineralized. The main ore shoot lies in the plane of the structure and pitches at approximately 45 degrees to the northwest. It is exposed at 1830 metres elevation in the Broadview shaft, which was sunk 36.5 metres on a shoot of coarse-grained galena-sphalerite-chalcopyrite-pyrite ore in a weathered and sintery, honeycombed vein of milky quartz and ankerite. The shoot appears to follow the footwall of a tight fissure near the middle of the vein. It is 5.5 metres long and 1.52 metres wide on the 60-foot level and has been mined from that level to surface, and for a short distance below. The galena ore was hand picked and the sphalerite and chalcopyrite rich ore was left on the dump. There is an open-cut besides the No. 1 adit that exposes mineralized stringers in quartz veins in silicified green phyllite. The adit itself cuts sheared phyllite for 24 metres and intersects a ragged quartz-carbonate vein that strikes 120 degrees and dips steeply to the northeast. A short winze has been sunk from the adit to explore sulphides found in the footwall of the vein. This vein has been referred to as the "Copper" vein by Emmens and others. The No. 2 adit is 67 metres long and follows a sulphide-rich shoot that is 10 metres long and approximately 0.6 metre wide. A sample across 0.51 metre of the best-looking material assayed 0.34 grams per tonne gold, 253.7 grams per tonne silver, 4.09 per cent copper, 5.83 per cent lead and 4.5 per cent zinc. The shoot follows a tight fissure that has a 171 degree strike and 70 degree dip to the east. There are other smatterings of mineralization elsewhere in the adit. Adit No. 3 is 7.6 metres long but appears to be largely unmineralized. There are reported to be pockets or shoots of sulphide in the No. 4 and No. 5 adits; however, they were inaccessible in 1962, and are not described by Fyles and Eastwood (EMPR BULL 45). The two working on the Old Sonoma crown grant, immediately to the south of the Broadview, were worked at the same time as those of the Broadview and they show a similar style of mineralization. They encountered quartz-carbonate vein material with disseminated sulphide and rare pockets of higher grade sulphide.

Columbia Metals Corporation Limited controlled the True Fissure, Great Northern and Broadview properties in the mid 1960s and conducted an induced polarization survey that suggested that the True Fissure vein could be traced onto the Broadview claim. In 1968, the company undertook a substantial diamond drill program on the No. 3 level in an attempt to find parallel veins or splits.

In 2006, Taranis Resources Inc. conducted an exploration program of the property containing the occurrence. The program included various sampling, a total field magnetic survey, and VLF-EM survey. Sampling at the Broadview occurrence found maximum grades of 1.970 grams per tonne gold, 191.300 grams per tonne silver, 0.350 percent copper, 1.210 percent lead, and 7.040 percent zinc (McDonough, B. (2013-06-03): Technical Report on the Thor Project, British Columbia, Canada).

In 2007, Taranis Resources Inc. conducted a total of 29.1 line-kilometres of grid fixed loop transient EM geophysical survey. Six anomalies were discovered across the property.

In 2008, Taranis Resources Inc. conducted a drilling program at the Blue Bell, St. Elmo, Great Northern, True Fissure, and Broadview zones.

In 2012, Taranis Resources Inc. conducted a total field, gradiometer and VLF-EM geophysical surveys across the property containing the occurrence. Soil sampling was conducted over the Great Northern Grid, and the Meadow Grid. Anomalies from the surveys were coincident with geophysical, and historical work. Geological mapping found five zones on the Thor property. Thor property. The SIF Zone, Gold Pit Occurrence, Scab Zone, Antiform Zone, and Great Northern Footwall Zone.