The CORONATION mine, part of the approximately 4.5 kilometre long Bralorne Gold deposit trend, is situated approximately 1.8 kilometres southeast of Bralorne, B.C.

The Bralorne-Pioneer gold deposits are considered to belong to the mesothermal, orogenic, or greenstone-hosted quartz-carbonate gold vein deposits. These deposits form within metamorphic rocks in shallow to mid crustal depths of 5 to 15 kilometres. Quartz-carbonate veins are hosted in moderately to steeply dipping brittle-ductile shear zones and locally in shallow dipping extensional fractures. The approximately 4.5 kilometre long Bralorne-Pioneer gold-bearing vein system is a structurally-controlled hydrothermal gold deposit developed within a lensoidal block of relatively competent host rocks bounded by regional scale faults and less competent rocks.

The Coronation mine is in the northern end of the Pioneer Block, immediately southeast of the Bralorne East Block. Here, coarse-grained diorite bodies are in contact with Triassic volcanic and metasedimentary rocks. The Soda Granite comprises a narrow intrusive unit adjacent to the northern margin of the Bralorne Diorite. Contacts between the Soda Granite and the Pioneer volcanic greenstone are generally sharply defined and sheared. The main gold-bearing veins in the Pioneer Block are the Main Vein, the Main Hanging Wall Vein, the 77 Vein, the Taylor Vein, the 27 Vein, the J Vein, the 222 Vein and the 51B Foot Wall Vein.

The Little Joe (or Coronation) Vein, later known as the 77 Vein, was found in the footwall of the 51 Vein (or Ida May/Empire Vein - 092JNE002). The 77 Vein is hosted mainly in diorite of the Permian Bralorne Igneous Complex; it trends east from a serpentinite (President Ultramafics, correlative with the Permian and older Shulaps Ultramafics) belt/fault on its northwest end then is sharply deflected southeast along the border of a sodic granite intrusion that is related to the Bralorne complex or the Cretaceous to Tertiary Bendor pluton. The vein extends into the contact zone between the granite and Upper Triassic Pioneer Formation, Cadwallader Group greenstone where it gradually peters out. The vein is richest and widest where it is steepest and where it approaches the Soda Granite body, i.e., on its eastward trend.

The north dipping vein averages 1.1 metres in width and is well ribboned. It contains quartz, calcite, sericite, ankerite, mariposite and "patchy" scheelite. Sulphide minerals include arsenopyrite, pyrite, minor sphalerite, pyrrhotite, chalcopyrite and occasional stibnite, galena and molybdenite. Gold is closely associated with arsenopyrite. The vein has a vertical continuity of 1500 metres. At lower levels, it averages 38.4 grams per tonne across 2 metres width for 160 metres; the probable (geological) reserve is 80,723 tonnes (Property File - Campbell, 1973). The 77 Vein was the most prolific of the Bralorne veins and produced 1,904,700 tonnes of ore up until the mine closed in 1971.

The 53 Vein, the faulted extension of the 77 Vein, is described as wide and strong and gradually steepens as it approaches the serpentine belt. Both the 77 and 53 veins contain numerous branches in the foot and hangingwalls.

The following resource estimates were reported in The Northern Miner, April 4, 2005. It is not known if they are NI 43-101 compliant. The indicated mineral resource in the 51B FW Vein is reported at 17,729 tonnes grading 11 grams gold per tonne. The resource was based on 43 diamond drill holes drilled this winter and five historic drill holes. The 51B FW vein intersected by the Area 51 crosscut yielded considerably higher grades of up to 21.1 grams gold over 1.5 metres. Another inferred resource of 389,964 tonnes grading 10.4 grams gold sits above the 800-level. In 2009, exploration and development work conducted included access development for the Pioneer gap areas. A new adit and a track drift were driven 140.2 metres towards connecting the 51BFW vein on the Bralorne 400 level.

In 2015, 20 holes were drilled on the 77 and 52 Veins in the Gap zone between the historic Bralorne and Pioneer Mines totaling 6,202.98 metres of drilling. Drilling highlights include intercepts of 13.01 grams per tonne gold over a core length of 1.7 metres (1.1 metres true width) in hole SB15-011 on the 52 vein and 21.53 grams per tonne gold over a core length of 1.7 metres (1.5 metre true width) in hole SB15-020 on the 77 vein (Kirkham, G. (2016-10-20): NI 43-101 Technical Report – Bralorne Gold Mine).

In 2018, Bralorne Gold Mines (Talisker Resources) ran aggressive programs to evaluate the potential of underexplored portions of the property, including digitization of known information, data mining and integration into 3D visualization software. Thirteen diamond drill holes in the Bralorne East and Pioneer Blocks (Ida May, Coronation and Pioneer areas) were completed from surface, totaling 3045.87 metres to delineate new resources on existing veins within the inferred resources category (Assessment Report 38967).

In 2020, Talisker Resources completed nine surface diamond drill holes, totaling 3650.7 metres, on the Bralorne Gold project. Also at this time, an updated mineral resource for the Bralorne Gold project (51B FW, 51BFW/HW, Taylor veins (Pioneer Gap), Alhambra, BK, BK-9870, BKN, Prince, Shaft (King Block) veins) was reported at 191 416 tonnes measured and indicated grading 10.61 grams per tonne gold with an additional 28 758 tonnes inferred grading 7.18 grams per tonne gold (Talisker Resources Ltd. [2020-09-02]: NI 43-101 Technical Report, Bralorne Gold Project, Bralorne, British Columbia, Canada).

In 2021, Talisker drilled 31 diamond drill holes totaling 16,814.5 metres and 3 reverse circulation holes totaling 1,343 metres in the BRX and Bralorne Mine blocks, as well as an airborne magnetic, VLF-EM and radiometric surveys. In 2022, a further 34,425.1 metres of infill drilling in 80 holes were completed extending from the King Block in the northwest to Pioneer in the southeast (Assessment Report 40623). In latter 2022, 2458 metres were drilled in 3 holes to extend boundaries of known veins along strike and at depth (Assessment Report 41719).

*Note that the Coronation prospect has vein systems in common with the Pioneer and Ida May mines. See Pioneer (Minfile 092JNE004) and IDA May (Minfile 092JNE002).

*See BRALORNE (Minfile 092JNE001) for more on exploration, geology and mineral resource estimates for the Bralorne Gold deposit belt.