Increases In Ounces And Grade At Herbert Gold Deposit

VANCOUVER - Grande Portage Resources Ltd. reported an updated NI 43-101 Independent Mineral Resource Estimate the Herbert Gold Deposit located in S.E. Alaska. The Mineral Resource Estimate has a base case mineral resource cut to 181 grams per tonne gold (gpt Au). The Mineral Resource is reported at a 2.5 gpt cutoff grade and consists of:1) An Indicated Resource of 1,438,500 ounces of gold at an average grade of 9.47 gpt Au in 4,726,000 tonnes. 2) An Inferred Resource of 515,700 ounces of gold at an average grade of 8.85 gpt Au in 1,813,000 tonnes. 3) An Indicated Resource of 891,600 ounces of silver at an average grade of 5.86 gpt Ag in 4,726,000 tonnes. 4) An Inferred Resource of 390,600 ounces of silver at an average grade of 7.33 gpt Ag in 1,813,000 tonnes.

34 diamond drill holes from 8 separate pads totalling 15,611 m (~51,000 ft) are added to the database which now total 240 holes. The Z and M pad drilling tested the western portion of the deposit and tightened the spacing on high-grade mineralization in the Goat Hanging Wall, Goat and Sleeping Giant veins, increasing the confidence level. The AB, P, Q, and BB pad drilling tested the eastern and deeper portions of the deposit and identifying new high-grade mineralization in the Sleeping Giant (15.42 gpt gold/2.1 m) and extending the Goat Hanging Wall, Goat, Sleeping Giant, Ridge, Main Hanging Wall and Main veins to the east and to depth. Deepest mineralization intersected to date on the property at -400m AMSL in 21Q-4 (20.9 gpt gold/0.9m) in the Main Vein (outcrops at 185m AMSL). Mineralization is open on all veins and uncorrelated intercepts located in sparsely drilled areas north and south of the Deep Trench Vein, and north of the Goat Hanging Wall Vein.

Ian Klassen, President and CEO, said, "We are very pleased to present an updated independent Mineral Resource Estimate for the Herbert Gold deposit, the result of continued dedication and hard work from the entire team. The overall number of ounces and grade has increased since we announced our previous resource estimate in 2021. This estimate includes drilling from the past 3 drill seasons (2021-2023) and was designed to both maximize expansion while also adding greater model definition through in-fill drilling in the Goat Hanging Wall, Goat Main Vein, Ridge Vein Hanging Wall, Main Vein North Strand and Deep Trench Vein".