Vancouver, British Columbia--(Newsfile Corp. - January 8, 2019) - Grande Portage Resources Ltd. (TSXV: GPG) (OTCQB:
GPTRF) (FSE: GPB) ("Grande Portage" or the "Company") is pleased to announce the discovery of a new mineralized zone
directly underneath its 2018 M Pad location.
Drill pad M18 was constructed in an area of low topographic expression and was situated on overburden consisting of talus mixed
with glacial outwash and alluvium. There was no outcropping bedrock near the drill pad so the discovery of near-surface
mineralization under the pad was somewhat of a surprise.
Seven of the eleven holes drilled from M Pad in southerly directions at various azimuths hit shallow mineralization. The
character of the mineralization is a series of fractures with pervasive alteration of the quartz diorite host rock. Alteration
consists of chlorite and sericite replacement of original mafic minerals along with iron carbonate and arsenopyrite enrichment with
minimal quartz. Arsenopyrite is strongly associated with gold in the Herbert vein system.
Hole 18M-10 encountered 8.4 meters of 1.65 gpt Au weighted average between 14.0 and 22.7 meters depth with the strongest being
0.94 meters of 3.94 gpt Au. Hole 18M-13 intersected 4.62 meters of 3.77 gpt Au weighted average between 9.1 to 13.72 meters depth
with the strongest being 1.14 meters of 9.33 gpt Au.
The location of Pad 18M relative to the local topography suggests this new discovery is similar to structure discovered under
Pad F in 2012. That discovery was also a surprise and occurs as a NE-trending structure occupying a topographic trench which
intersects with the Deep Trench vein near it's west end. Several holes drilled from F Pad intersected strong shallow mineralization
in this structure and holes drilled from Pad 315 (315D and 315E) just east of the structure returned up to 1.73 meters of 23.23 gpt
Au containing an assay of 0.36 m of 97.2 gpt Au with visible gold in the core. This structure under Pad F, termed the F Vein, could
connect the Deep Trench with the Main Vein if it is continuous along its projection, giving it a possible strike length of nearly
200 meters. The new discovery under Pad M could be a similar structure extending between the Goat Vein and the North Vein, a
distance of about 250 meters.
This new discovery of gold mineralization beneath Pad M in 2018 demonstrates the potential for other new discoveries in areas
covered by overburden on the Herbert property which have been subjected to more rapid erosion due to their softer and weaker nature
caused by structural fracturing and shearing and subsequent hydrothermal alteration and mineralization. Additional drilling will be
forthcoming to assess the extent and size of the F Vein and this new discovery and its relation to the known mineralized
structures, especially the Goat Vein.
Samples are analyzed by an independent lab in Vancouver, with the more highly mineralized intervals processed using the metallic
screening and fire assay method which assures no coarse gold is missed in the analysis.
The qualified person for this news release is Mr. Carl Hale, P.Geo. Mr. Hale is a Qualified Person as defined by NI 43-101, and
is responsible for the technical content of this press release.
About Grande Portage:
Grande Portage Resources Ltd. is a Tier 2 publicly traded mineral exploration company principally focused on the Herbert Gold
Property situated approximately 25 km north of Juneau, Alaska. The Company holds a 100% leasehold interest in the Herbert Gold
Property, subject to a 5% NSR in favour of the underlying property owners. The Herbert Gold Property has an amended and restated NI
43-101 technical report dated July 12, 2018, effective May 28, 2018, completed with an uncut Indicated Mineral Resource of
1,107,000 tonnes containing 257,950 oz of gold at 7.25 g/t and uncut Inferred Mineral Resources of 423,200 tonnes containing 82,200
oz of gold at 6.04g/t, each at a 2.5 gpt cut-off. The system is open to length and depth and is host to at least six main composite
vein-fault structures that contain ribbon structure quartz-sulfide veins. The project lies prominently within the 160km long Juneau
Gold Belt, which has produced nearly seven million ounces of gold. The results from the Company's drilling programs confirm the
identification of major elements of a complex mesothermal gold-quartz system with numerous targets.
ON BEHALF OF THE BOARD
"Ian Klassen"
Ian M. Klassen
President & Chief Executive Officer
NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICE PROVIDER (AS THAT TERM IS DEFINED UNDER THE POLICIES OF
THE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS NEWS RELEASE