The West Arena property lies near the middle of the Urban-Barry Greenstone Belt, approximately 170 km northeast of Val-d’Or, Québec. The property contains the Gladiator gold deposit where Bonterra’s exploration programs have been focused. Gladiator is described as a highly silicified and altered sheared mafic volcanic, locally exhibiting intrusions of syenite and quartz porphyry. Gold is found primarily in smokey quartzcarbonate and tourmaline veins ranging from 20 centimetres to 4 metres in width.
A Mineral Resource Estimate for the Gladiator deposit was published in May 2019 and contains 743 kt grading 8.5 g/t for 202,000 ounces of gold in the Indicated category (3.5 g/t cut-off). Another 3.1 Mt grading 9.1 g/t for 897,000 ounces of gold is listed in the Inferred category. A 60,000 metre drill campaign completed during 2017 and a 70,000 metre program in 2018 has expanded the strike length and depth of the Gladiator deposit to 1,300 metres and 1,100 metres respectively, with a number of subparallel zones or mineralized horizons being identified. The deposit remains open in all directions.
Bonterra has initiated the permitting process for the development of a decline to complete a bulk sample at Gladiator. The project is expected to contribute 1,000 tpd of gold ore to the Urban-Barry mill, a nearby processing plant that is being expanded to handle throughput of 2,400 tpd. Mining is expected to commence at Gladiator during the second half of 2020.
Step-out drilling at Gladiator extends gold mineralization on both the Barbeau and North zones. Highlights include drill-hole BA-19-37 with 8.1 g/t gold over 1.8 metres from 440.0 metres at Barbeau and BA-19-40 with 101.1 g/t gold over 3.9 metres from 570.1 metres at North Zone.
The results of the NI 43-101 Mineral Resource Estimate for the Gladiator deposit include Indicated Resources of 743 kt at an average grade of 8.46 g/t gold totaling 202,000 ounces and Inferred Resources of 3.1 Mt at an average grade of 9.1 g/t gold totaling 897,000 ounces.