Ridgeline Minerals Corp. announced bonanza grade copper samples returning up to 15.5% from surface trenching at the Big Blue Project, a porphyry/skarn copper ("Cu") - gold ("Au") - silver ("Ag") exploration prospect located directly adjacent to Reyna Silver's Medicine Springs CRD discovery in Elko County, Nevada. Ridgeline geologists collected eighteen continuous trench samples at two trench locations and fourteen surface rock chip samples in May 2023.

Trench sampling confirmed historically reported mine grades 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. Trench Assay Highlights: Trench 1 (Delker Mine): 0.6 metres ("m") grading 15.5% Cu, 0.18 g/t Ag and 0.1% cobalt ("Co") within 2.4 m grading 4.6% Cu, 0.52 g/tAg and 0.06% 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 1916-1917. 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 5-7 m based on observed mining dimensions at the historical Delker Mine.

Sampling procedures: Trench samples were broken out by primary lithologic contacts followed by sub-samples 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 90%+ 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% Cu, 0.10 g/t Au, 4.51 g/t Ag (sample #32) and 5.8% Cu, 0.,07 g/t Au, 0.63 g/t Ag (sample No.21).

A total of fourteen rock chip samples were collected in May 2023 ranging from 0.01-10.8% Cu, below detection limit ("BDL") - 0.10 g/t Au and 0.10 - 4.51 g/t Ag (avg. 2.0% Cu, 0.02 g/t Au, 0.59 g/t Ag).