Berrigan South
Location, Access, Description
The Berrigan South property is located in Eeyou-Istchee James Bay Government, Northern Québec, Canada (NTS 32G16), directly north of the town of Chibougamau (Qc). It consists of 23 contiguous claims covering a total area of 1,142.92 hectares. The Project is easily accessible in vehicle by all-weather gravel roads connecting to regional highway #167.
The claims have been stacked by Globex in 2010 and then transferred in 2012 to Chibougamau Independent Mines (CIM), a subsidiary of Globex. TomaGold optioned the property from CIM in 2023 (as well as several other properties of CIM ; see the General Map of Globex’s assets in the Chibougamau area), and both CIM and Globex will retain a 2% Gross Metal Royalty (GMR) on it.
The Berrigan Mine project of CIM, also under option to TomaGold, is located NW of the Berrigan South property. Historical Resource of 1.39 Mt @ 3.17% Zn and 1.77 g/t Au have been estimated on the Berrigan Main Zone (GM61359); both Globex and CIM retain 2% GMR on the Berrigan Mine property also.
Geology and Mineralization
The Berrigan South property is located in the Superior Province of the Canadian Shield. The Abitibi Sub-province is known for its prolific and diverse rich mineral deposits; total gold production of the Abitibi Greenstone Belt (AGB) since the beginning of the 20th century is estimated at over 210 million ounces Au (Dumas, 2024).
The Chibougamau Mining District is located at the north-east end of the Abitibi Greenstone Belt and hosts a variety of deposits styles; Leclerc et al. (2012) documented volcanogenic massive sulphide (“VMS”) deposits, magmatic Fe-Ti-V and Ni-Cu ± PGE mineralization, early polymetallic (Au-Ag-Cu-Zn-Pb) vein deposits (to which the Property mineralization might belong), Chibougamau-type Cu-Au-veins, shear zone-hosted Au deposits, and Opemiska-type Cu-Au veins. Total production of the Chibougamau mining camp since the beginning of the 20th century is estimated at 1,624.9 Mlbs Cu and 3.22 Moz Au (Houle, 2019).
The Chibougamau region hosts some of the eldest rocks of the AGB; the area is dominated by a stacking of Archean mafic volcanic rocks intercalated with a few felsic units and some sedimentary units, intruded by two large batholiths : the anorthosite Doré Lake Complex, and the Chibougamau Pluto composed of tonalite and granodiorite. These two intrusions played a major role as regional mineralized features, and the vast majority of mines in the Lake Chibougamau area are located within or near these two intrusions. Regional metamorphism is at the greenschists grade.
The Berrigan South property is largely underlain by ENE-oriented mafic volcanics of the Bruneau Formation and volcanosediments of the Allard Membre, intruded by Archean gabbro sills. Mafic to ultramafic intrusive rocks of the Cummings Intrusive Suite are present in the northwestern part of the property, intercalated with narrow bands of felsic volcanics and sediments of the Blondeau Formation. The Cummings Suite is composed of three distinct ultramafic to mafic sills named, from bottom to top, the Roberge, Ventures, and Bourbeau sills. On a regional scale, these sills contain significant hydrothermal mineralization. Lode gold mineralization in the Berrigan lake area consists of sulphide disseminations, stringers and breccia.
The Berrigan South property host four (4) polymetallic mineral prospects of various mineralization styles : the Lac Fleury-McKenzie (Au-Cu) and Beltac-Sud (Au-Ag) prospects are of lode gold type associated with sulfide-bearing quartz-carbonate veins in shear zones ; the Lac Antoinette-Est (Cu-Au) prospect hosts secondary base metal mineralization ; the Carrière Jos (Zn-Ag-Cu) prospect hosts volcanogenic sulphide (VMS) mineralization.
The area also hosts significative potential for VMS mineralization (Lemoine and Lac Scott mines) and Ni-Cu-Co-Cr mineralization associated with ultramafic rocks of the Lac Doré Complex and Cummings sills.
History
Discovery of metallic mineralization in this area dates back to 1929 with the discovery of the “Lac Berrigan South Zone” in surface prospection. Numerous exploration programs (mapping, sampling, geophysics, diamond drilling…) have been undertaken by successive owners ; detailed history of exploration in the area of the property is presented in the NI 43-101 Technical Report on the Berrigan Mine property prepared by InnovExplo (Carrier, 2022).
Prior to its acquisition by Globex in 2010, a total of more than 4,000 linear metres in 54 drill holes (DDH) have been documented on the Berrigan South property.
Recent developments :
In 2021, CIM requested the services of NOVATEM to fly a very-high resolution airborne magnetic survey (GM72456) over several of its properties in the Chibougamau area; the survey covered the entire Berrigan South property.
In 2022, CIM mandated InnovExplo to prepare a NI43-101 Technical Report on the Berrigan Mine property, located just north of the Berrigan South property (Carrier, GM73728). Review of the Property’s history, geological setting, exploration status and potential confirmed the exploration merit of the property area.
TomaGold optioned two (2) blocks of properties from CIM in 2023, including the Berrigan South claims (CIM Press Release dated August 14, 2023). In late 2025, the company conducted a 15-holes DDH program which intersected significant zinc, silver and gold mineralization immediately north of the Berrigan South property (TomaGold press release dated January 29, 2026). In particular, drill hole TOM-25-015, grading 5.75% ZnEq (1.34 g/t AuEq) over 98.5 m, highlights a new semi-massive sulfide zone that extends at depth beneath the Berrigan Main Zone. Borehole-EM survey by Abitibi Geophysics indicates significant extension potential (TomaGold press release dated February 05, 2026).
Resources and Potential
Historical work in the area identified a regional favorable context for several commodities including gold, copper, zinc and silver. The property potential is supported by favourable geological and structural setting and the presence of well-documented metallogenic and litho-tectonic elements such as the layered mafic-ultramafic sills of the Cummings Complex, felsic volcanic and volcanoclastic rocks of the Blondeau Formation, and other structures and alteration (Carrier, 2022).
TomaGold is currently working to bring the Berrigan Mine property to a more advanced stage of exploration. Drilling and geophysical work in 2025 has discovered a new mineralized zone with strong economic potential beneath the Berrigan Main Zone, named Berrigan Deep, located about 1.2 km north of the property. Intersections up to 5.75% ZnEq (1.34 g/t AuEq) over 98.5 m returned from hole TOM-25-015 (TomaGold press release dated February 05, 2026).