On November 3, 2021, Kirkland Lake Gold reported that drilling in the first three quarters of 2021 continued to target the Harrier zone as well as the Lower Phoenix system in the southern end of the mining license. Surface drilling also began in the previous quarter to target the Harrier South, Daley's Hill & Russell's Reef lines of mineralization. On August 30, 2021, Kirkland Lake Gold reported results from 197 underground and 58 surface holes at Fosterville where drilling continued to target the Lower Phoenix, Harrier, Cygnet and Robbins Hill areas. Significant intercepts in the Lower Phoenix which host the Swan zone include 207 g/t gold over 2.6 meters ( November 4, 2021 revision), 9.6 g/t gold over 6.4 meters and 10 g/t gold over 17.6 meters. Exploration in the Lower Phoenix has expanded mineralization 500 meters down-plunge of the current Mineral Reserves.