Mr. Chad Peters reports

RIDGELINE MINERALS TRENCHES BONANZA GRADE COPPER AT THE BIG BLUE PROJECT, NV

Ridgeline Minerals Corp. has released bonanza-grade copper samples returning up to 15.5 per cent from surface trenching at the Big Blue project, a porphyry/skarn copper-gold-silver exploration prospect located directly adjacent to Reyna Silver's Medicine Springs CRD (carbonate replacement deposit) discovery in Elko county, Nevada. Ridgeline geologists collected 18 continuous trench samples at two trench locations and 14 surface rock chip samples in May, 2023. Trench sampling confirmed historically reported mine grades (see Feb. 9, 2023, press release) at the past-producing Delker mine while wide-spaced reconnaissance rock chip sampling effectively doubled the mineralized footprint of the known system. Highlight results are detailed below.

Chad Peters, Ridgeline's president and chief executive officer, commented: "We knew Big Blue was a high-grade copper skarn when we staked it; however, today's trenching results have exceeded expectations. What gets us especially excited is that the bonanza grades at the Delker mine represent the oxidized skarn portion of a potentially much larger porphyry copper system feeding the entire district; and we suspect that this porphyry lies to the southwest under shallow valley cover on Ridgeline's ground. Our geologists are anxious to begin backpack drilling in June where they will target the projection of high-grade copper mineralization on trend of the Delker mine, which currently exhibits a mineralized strike of over 1.5 kilometres towards the Skarn Hill adit to the southwest. We are still piecing together the story at Big Blue, and we anticipate additional porphyry and CRD targets to quickly develop as we continue to build out our geologic model and prepare the project for a maiden drill campaign."

Trench assay highlights:

• Trench 1 (Delker mine): 0.6 metre grading 15.5 per cent Cu, 0.18 gram per tonne Ag and 0.1 per cent cobalt within 2.4 m grading 4.6 per cent Cu, 0.52 g/t Ag and 0.06 per cent Co;
  • Note that trench sampling was conducted across the face and roof or back of the Delker mine adit with the core of the mineralized horizon mined out during historical mining activities in 1916 to 1917;
  • Trench 1 is the first instance of strongly elevated cobalt mineralization sampled on the project;
  • Backpack drilling on strike of the Delker mine is required to better understand the potential true thickness of the mineralized Cu horizon, which is currently estimated at five to seven m based on observed mining dimensions at the historical Delker mine.
• Sampling procedures: Trench samples were broken out by primary lithologic contacts followed by subsamples based on alteration and mineralization to minimize sample bias and ensure consistent sampling across the trench interval. True thickness of sample intervals is estimated at over 90 per cent as all samples were taken perpendicular to bedding and lithologic contacts whenever possible.

Rock chip highlights:

• Select rock chip samples returned grades up to 10.8 per cent Cu, 0.10 g/t Au, 4.51 g/t Ag (sample No. 32) and 5.8 per cent Cu, 0.07 g/t Au, 0.63 g/t Ag (sample No. 21).
• A total of 14 rock chip samples were collected in May, 2023, ranging from 0.01 to 10.8 per cent Cu, below detection limit (BDL) -- 0.10 g/t Au and 0.10 -- 4.51 g/t Ag (average 2 per cent Cu, 0.02 g/t Au, 0.59 g/t Ag).

Big Blue project

Big Blue is located in Elko county, Nevada, approximately 75 kilometres southeast of the city of Elko, Nev. The project includes the past-producing Delker mine, which produced a reported 94,434 pounds of copper at an average grade of 6.2 per cent Cu between 1916 and 1917 and shares its southern boundary with Reyna Silver's Medicine Springs silver-lead-zinc CRD project. Mineralization occurs as high-grade skarn located proximal to northeast-trending felsic dikes that are interpreted as bleeding off a potential porphyry source in the valley, which has never been drill tested. The primary target at Big Blue is porphyry-skarn Cu plus or minus Au-Ag mineralization, which may be the source of distal CRD mineralization at Medicine Springs -- analogous to the Butte Valley porphyry Cu-Au system inferred to be a source of CRD mineralization at the company's nearby Selena project. A large portion of the project is covered by shallow, postmineral gravels covering a roughly five km target area resulting in limited surface expression of the porphyry system. The 100-per-cent-owned project comprises a total of 29 square kilometres of highly prospective exploration ground that has seen limited exploration since the early 1900s and will benefit from the Ridgeline teams systematic approach to discovery.

Quality assurance/quality control procedures

Samples are submitted to American Assay Laboratories (AAL) of Sparks, Nev., which is a certified and accredited laboratory, independent of the company. Samples are prepared using industry-standard prep methods and analyzed using FA-PB30-ICP (Au; 30-gram fire assay) and ICP-5AM48 (48-element suite; 0.5-gram five-acid digestion/inductively coupled plasma mass spectrometry) methods. AAL also undertakes its own internal coarse and pulp duplicate analysis to ensure proper sample preparation and equipment calibration. Independent check samples are sent to Paragon Geochemical Labs (PAL) of Sparks, Nev., which is a certified and accredited laboratory, independent of the company. Ridgeline's QA/QC program includes regular insertion of certified reference material standards, duplicates and blanks into the sample stream with a stringent review of all results completed by the company's qualified person, Michael T. Harp, vice-president, exploration. Technical information contained in this news release has been reviewed and approved by Mr. Harp, CPG, the company's vice-president, exploration, who is Ridgeline's qualified person under National Instrument 43-101 and responsible for technical matters of this release.

About Ridgeline Minerals Corp.

Ridgeline is a discovery-focused gold-silver explorer with a proven management team and a 192-square-kilometre exploration portfolio across six projects in Nevada and Idaho, United States.

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