HighGold Mining Inc. announced the third and final batch of assay results from 2022 drilling at its new Ellis Zone discovery at the Difficult Creek Prospect (DC), located four km northeast of the Company's 1.05 Moz indicated at 9.4 g/t gold equivalent (AuEq) JT Deposit. Difficult Creek is one of several district-scale prospects being explored by HighGold on the Johnson Tract project in Southcentral Alaska, USA. Diamond drilling during the second half of the 2022 summer field season focused on systematically stepping out along strike and at depth on the Ellis Zone on 25 to 50-meter centres.
The new drilling has returned strong mineralization west and down-plunge of recently released results and includes 15.5m at 4.04 g/t AuEq, including 1.5m at 26.24 g/t AuEq, in hole DC22-056, and 16.1m at 3.07 g/t AuEq, including 3.0m at 7.84 g/t AuEq, in hole DC22-060. Drill Highlights of the Ellis Zone, DC Prospect: 4.1m at 5.89 g/t AuEq(3.28 g/t Au, 3.14% Zn, 0.81% Pb, 0.29% Cu), in hole DC22-037, including 0.9m at 16.21 g/t AuEq (14.55 g/t Au,0.22% Zn, 0.89% Cu); 6.6m at 4.96 g/t AuEq(1.43 g/t Au, 4.35% Zn, 0.62% Cu), in hole DC22-049, including 1.3m at 12.90 g/t AuEq (5.70 g/t Au, 2.08% Zn, 2.55% Cu); 16.1m at 1.53 g/t AuEq(0.17 g/t Au, 2.08% Zn), in hole DC22-050, including 0.5m at 20.59 g/t AuEq (0.76 g/t Au, 32.50% Zn, 0.43%); 3.6m at 5.92 g/t AuEq (0.90 g/t Au, 7.91% Zn), in hole DC22-051, including 1.5m at 9.83 g/t AuEq (1.91 g/t Au,12.75% Zn, 0.29% Cu); 15.5m at 4.04 g/t AuEq(2.99 g/t Au, 1.49% Zn), in hole DC22-056, including 1.5m at 26.24 g/t AuEq (25.70 g/t Au, 0.81% Zn); 16.1m at 3.07 g/t AuEq (0.36 g/t Au, 3.97% Zn, 0.21% Cu), in hole DC22-060, including 3.0m at 7.84 g/t AuEq (0.75 g/t Au, 11.03% Zn, 0.31% Cu); 8.5m at 2.62 g/t AuEq (1.41 g/t Au, 1.55% Zn, 0.69% Pb), in hole DC22-065. Discussion of DC Prospect and Ellis Zone Drill Results: The DC Prospect is located 4 kilometers northeast of the JT Deposit and is characterized by a series of large gossan alteration zones similar in style to the +1Moz AuEq JT Deposit that collectively extend over a 1.5 km x 3.0 km area in a broad northeasterly trend.
Gold mineralization and pervasive clay/anhydrite alteration are preferentially developed within dacitic to rhyolitic fragmental rocks that are capped by a shallowly-dipping sequence of lesser altered andesite volcanics that are host to a gold- and silver-rich epithermal vein field at higher elevations. The widespread extent of mineralization exposed in erosional windows through the capping andesite supports potential for a large and partially blind mineralized system linking the various DC Prospect zones together over a strike length of 3 km. Drilling in late 2021 resulted in the discovery of near-surface bonanza-grade mineralization, which returned 577.9 g/t Au and 2,023 g/t Ag over 6.40 meters in hole DC21-010.
Subsequent geological modeling during the off-season inferred an east-west striking, steeply north-dipping trend to the mineralization that became the focus for the initial 2022 drill program at what is now referred to as the Ellis Zone. A total of 43 drill holes for 6,056.4 meterswere completedat the Difficult Creek Prospect, including 39 holes at the Ellis Zone and 5 holes at other nearby targets. This release reports on all remaining assay results for the 2022 drill program at Difficult Creek, with new results reported for 29 holes (24 from the Ellis Zone and 5 from other nearby targets).
Of particular note, are holes DC22-049/050/051/056/060 which were drilled down-dip and down-plunge from previously released hole DC22-046 which returned 14.8m at 14.3 g/t AuEq and hole DC22-043 which returned 11.9m at 21.7 g/t AuEq. The most significant of the current batch of assay results are 15.5m at 2.99 g/t Au, 1.49% Zn (4.04 g/t AuEq), including 1.5m at 25.70 g/t Au, 0.81% Zn (26.24 g/t AuEq) in hole DC22-056, and 16.1m at 0.36 g/t Au, 3.97% Zn, 0.21% Cu (3.07 g/t AuEq), including 3.0m at 0.75 g/t Au, 11.03% Zn, 0.31% Cu (7.84 g/t AuEq) in hole DC22-060. Also, of note are deep intersections in hole DC22-047 (12.9m at 1.1 g/t AuEq) and hole DC22-061 (14.0m at 1.3 g/t AuEq), 225 meters below surface which represent 150-meter step outs down dip and demonstrate the system is open to depth.
Drill holes have been completed as fans of holes in a close-spaced (12.5 to 50-meter) grid pattern with the objective of defining the geometry, geological controls, and grade distribution of this significant new mineralized zone. Drilling has now defined the Ellis Zone mineralization over a strike length of 125 meters and from surface to a depth of 225 meters with an average true thickness of 10 to 15m within the plunging core of the zone. An apparent shallow plunge to the west to northwest is now implied by the higher-grade intercepts.
The Ellis Zone remains open along strike to the west and down-dip/down-plunge. Mineralogy, veining and alteration of the Ellis Zone are similar to the main JT Deposit, which has been defined from surface to a vertical depth of more than 300 meters, over a strike length of 600 meters and has an average true thickness of 40m.