MacDonald Mines Exploration Ltd. provided an update on the Phase 1 drill program undertaken at the Alwyn Mine Copper-Gold (Cu-Au) Trend and the Glade Gold (Au) Trend on its 100% owned SPJ Property in Sudbury, Ontario. The Company recently completed drilling at Alwyn Mine and Glade as part of MacDonald Mines Phase 1 2022 exploration program. The drill program consisted of 665m of oriented diamond drilling at the northern end of the 1.5 km-long high-priority target identified by GoldSpot in the Alwyn Copper-Gold (Cu-Au) Trend, as well as 503m of oriented diamond drilling along the Glade Gold (Au) Trend.

The 2021 trenching/mapping program at Alwyn Mine confirmed the presence of two significant shear zones and a dense network of Copper-Gold (Cu-Au) bearing quartz-carbonate veins at surface. Historical drilling at Alwyn intercepted the same system, including 16.59 g/t Au over 1.52m and 4.46 g/t Au over 3.81m (Haultain Resources, 1983, AFRI 41I10NE0154). Copper and silver assays were not reported during that historic drilling program.

The reader is cautioned that the assay data is historical in nature, and the qualified person has not independently validated the accuracy of the historical results. The true width of the intersected zone of mineralization is unknown. Phase 1 of drilling in the Alwyn Mine Copper-Gold (Cu-Au) Trend consisted of five oriented diamond drill holes, totalling 665m.

Variably dense and multi-directional networks of quartz-carbonate to carbonate veins, comparable to the networks of veins associated with Copper-Gold (Cu-Au) mineralization at surface, were intersected in four out of the five drill holes. Iron oxide alteration occurring as sporadic specular to earthy hematite veinlets was also observed in conjunction with certain zones of chalcopyrite mineralization and more broadly in the Alwyn area. Observations made in these holes demonstrated the potential for the Alwyn Mine Copper-Gold (Cu-Au) trend to extend southeast of its currently known footprint, as it was predicted by GoldSpot (see news release May 3rd, 2022).

MacDonald's drilling also confirmed veining and mineralization over a 115m strike length and that mineralization remains open in all directions. The strongest zone of quartz-carbonate veining associated with chalcopyrite and pyrite mineralization was intersected in hole AW-22-102 that was drilled in a previously untested area east of the historical Alwyn Mine. Quartz-carbonate, carbonate and hematite-carbonate veining variably mineralized with chalcopyrite and pyrite persisted over 100m in the drill hole, including a 3m quartz-carbonate vein (true width currently unknown) with 2-3% fracture filling chalcopyrite and up to 3-5% very fine-grained clusters/fracture filling chalcopyrite-pyrite.

The location of AW-22-102 suggests that the Copper-Gold (Cu-Au) vein system remains prospective to the south where GoldSpot's high-priority target extends for 1.5 km. In the other drill holes, mineralized zones consisted of 5-10% veins spanning broad intervals up to 116m, crosscut by occasional, narrow (<10m) Nipissing diabase dykes. Approximately 30% of veins carry mineralization, consisting of chalcopyrite + pyrite up to 5%, but typically containing 0.5-2% total sulphides.

Specular hematite is commonly found in fractures within mineralized veins and halos around sulphides in veins. Additional potassic and sodic alteration halos were common near stronger mineralization. The initial findings of this drill program (pending assays) in conjunction with GoldSpot's interpreted 2.5km long Alwyn trend, including a 1.5 km-long high-priority target shown to be associated with Copper-Gold (Cu-Au) mineralization, are very encouraging for future exploration programs in the Alwyn Mine Copper-Gold (Cu-Au) Trend.

Phase 1 continued with 503m of new drilling at the Glade Gold (Au) trend to follow up on the successful drilling and trench work completed in 2021 (see news releases dated May 13th, June 15th, and July 6th, 2021). Mineralization appears to follow the upper and lower contacts of a Nipissing sill with Huronian sedimentary rocks, potentially spanning a 3km east-southeasterly trend, as indicated by GoldSpot's targeting results. The goal of this program was to target high grade Au mineralization down plunge from Au-bearing quartz veins hosted in the Nipissing diabase that were identified on surface and in previous drilling campaign.

Logging of the vein network at Glade is currently underway.