Mr. Ian Klassen reports

GRANDE PORTAGE RESOURCES DRILLS 9.87 g/t gold OVER 3.39 METERS (11.1 FT)--- DRILLING NOW EXTENDS GOAT VEIN STRIKE LENGTH TO ALMOST A KILOMETRE AT THE HERBERT GOLD PROJECT IN S.E ALASKA

Grande Portage Resources Ltd. has released results from three more diamond drill holes drilled at the Herbert gold project located in southeast Alaska.

Highlights

After drilling four holes from pad M (please refer to news release dated Sept. 14, 2023), the rig was moved 285 metres eastward where four more holes were drilled from pad P. The company is pleased to confirm that all pad P holes successfully targeted the eastern extensions of the Goat vein between 200 and 300 metres below surface. These holes tested an area of the eastern Goat vein which previously had indications of strong gold mineralization but only had sparse drilling. The three holes for which assay results have been returned substantiate that this is a significant gold-bearing region of the Goat vein and is expected to have a positive impact on the company's future mineral resource calculation.

The Goat vein structure was the target and was intersected in all four holes from this pad. DDH23P-3 also extended southward past the Goat vein where it intersected a well-mineralized section of the Sleeping Giant vein. Sample analyses from 23P-3 are pending and will be announced in due course.

DDH23P-1 intersected 1.10 metres assaying 7.66 grams per tonne gold in the Goat vein. This hole was approximately 36 metres below DDH20T-11 (24 g/t gold over 2.1 metres) and 56 metres west of DDH21P-4.

DDH23P-2 intersected 2.83 metres of 7.753 g/t gold in the Goat vein. This hole was approximately 86 metres below DDH23P-1. This intercept was approximately 15 metres east of DDH21P-1 and 27 metres above DDH20P-1 (9.79 g/t gold over 0.8 metre). This intersect occurs in a 10-metre shear zone and contains a 1.08-metre section which assayed 15.8 g/t gold in a silicified and microbrecciated vein riddled with thin sulphide-rich seams in a hydrothermally altered quartz diorite.

DDH23P-4 intersected 3.39 metres assaying 9.871 g/t gold, including a 1.08-metre interval of quartz vein assaying 30.8 g/t gold. This hole was approximately 47 metres below DDH21P-3 (3.8 g/t gold over 0.9 metre). At the elevation of this intercept the Goat vein now has approximately 900 metres of strike length from west to east. Mineralization in the quartz veins consists chiefly of arsenopyrite, and to a lesser extent, pyrite, galena, sphalerite and sparse visible gold.

The success of the 2023 drilling from pad P is highly encouraging because it demonstrates that strong gold mineralization can be found in the east-west Herbert vein structures the full distance between the western and eastern boundary faults which effectively terminate the veins. The depth of the veins remains open, but strong gold values have been intersected in DDH21Q-4 (0.92 metre of 18.93 g/t gold) at 600 metres below the surface in the company's deepest drilling, which indicates that the company's resource is only constrained by the major eastern and western boundary faults.

After completing drilling at pad P, the company moved the rig to pad BB, which is the easternmost drill pad on the property, and completed one hole targeting the Goat vein and the Sleeping Giant vein. Drilling results are still pending.

Past drilling over many years has confirmed that the Herbert gold project is a high-grade deposit. The chief primary gold-bearing veins at the Herbert gold project are strong, persistent and extend from the western boundary fault to the eastern fault, a distance averaging nearly one kilometre. Strong gold mineralization has been identified almost everywhere along these structures, both laterally and to the deepest limits of drilling over the last number of years. Much of the shallower portions of the veins have been tested with good to superb results. The Herbert gold veins are classed as a mesothermal high-quartz and low-sulphide-style mineralized system.

Ian Klassen, president and chief executive officer, reports: "Drilling this season certainly assists to fill in certain gaps within the established resource and adds to the confidence leading into a new resource estimate that will include the added drilling completed over the recent three-year period. Extending the higher-grade Goat vein to the east with these three more material intersections is great news."

Quality assurance/quality control

All core samples are cleaned and photographed before logging and sampling by a registered professional geologist. Samples were analyzed at ALS Canada Ltd. at its North Vancouver facilities using conventional preparation techniques and analyzed using Au-ICP21 for gold with screened metallic analyses for samples where visible gold was noted. ME-MS41 techniques were used to determine additional element concentrations. Blanks and standards were inserted in the field as well as in the laboratory with all checks reporting acceptable results. ALS is independent of the company and certified ISO-17025.

This news release has been prepared and approved by Carl Hale, CPG, a geologist with more than 40 years of experience and a qualified person as defined under National Instrument 43-101.

About Grande Portage Resources Ltd.

Grande Portage Resources is a publicly traded mineral exploration company focused on the Herbert gold discovery situated approximately 25 km north of Juneau, Alaska. The company holds a 100-per-cent interest in the Herbert property. The Herbert gold property system is open to length and depth and is host to at least six main composite vein-fault structures that contain ribbon structure quartz-sulphide veins. The project lies prominently within the 160 km long Juneau gold belt, which has produced over seven million ounces of gold. The company's updated NI 43-101 mineral resource estimate reported at a base case mineral resources cut-off grade of three grams per tonne gold and consists of: an indicated resource of 1,196,800 ounces of gold at an average grade of 10.23 g/t Au (3,637,000 tonnes); and an inferred resource of 325,900 ounces of gold at an average grade of 8.91 g/t Au (1,138,000 tonnes), as well as an indicated resource of 686,700 ounces of silver at an average grade of 5.87 g/t Ag (3,637,000 tonnes); and an inferred resource of 169,300 ounces of silver at an average grade of 4.63 g/t silver (1,138,000 tonnes).

We seek Safe Harbor.