Thickest Gold-Silver Zone To Date At Sullivan Gulch

VANCOUVER - Integra Resources Corp. reported on the DeLamar Project located in southwestern Idaho. The drill results continue to demonstrate the size and magnitude of the low-grade disseminated gold-silver zone at Sullivan Gulch along with the potential for resource growth, including drill hole IDE-22-229 which was drilled 320 m from the pit constrained resource at Sullivan Gulch. Intercepts in drill hole IDE-22-228 also continue to demonstrate the continuity of the newly discovered high-grade gold-silver structure that trends Northwest and dips Northeast. Drill hole IDE-22-228 now includes both the highest-grade silver intercept at DeLamar (please reference the news release dated May 25, 2022) and the longest interval of low-grade mineralization to date at the Project.

“Along with intersecting the thickest continuous gold-silver intercept to date on the Project at a grade of approximately twice the average grade of the deposit, the drill hole announced today further establishes the continuity of the recently discovered high-grade zone at Sullivan Gulch. This new high-grade gold-silver discovery, residing within this large low-grade gold-silver zone, has been expanded through additional intercepts reported today, including 9.00 g/t Au and 491 g/t Ag over 1.52 M and 2.33 g/t Au and 184.02 g/t Ag (4.70 g/t AuEq) over 11.58 m, among others. These high-grade intervals occur along the new Northeast dipping structure above the recently announced discovery, suggesting the presence of multiple, high-grade structures that trend Northwest and dip Northeast at multiple depths over a strike length of at least 200 m,” said, President and CEO George Salamis. “Exploration results like those reported today, both low-grade and high-grade, are further evidence that while the Company marches forward to permitting and development, the upside potential at DeLamar remains very relevant. We look forward to continued drilling at DeLamar while work continues in support of mine permitting.”

Along with demonstrating the magnitude of the large low-grade gold-silver zone at Sullivan Gulch, the drill results announced today continue to expand the emerging high-grade vein system at Sullivan Gulch that trends Northwest and dips to the Northeast. This newly discovered structure has been intercepted at multiple depths and along a strike length of at least 200 m. These intercepts further validate the geological model that in addition to a well-defined North-northwest trending vein system that dips to the Southwest which has seen the majority of drilling at Sullivan Gulch, there exists a lithologically controlled structure in quartz latite that dips Northeast and is open to the south, laterally, and at depth.

In general, the mineralization at Sullivan Gulch is largely hosted by porphyritic rhyolite and latite units, capped by a banded rhyolite formation, all of which are of mid-Miocene age. The gold-silver mineralization itself consists of a zone of moderately intense low-sulphidation epithermal veining, clay alteration and related disseminated sulphides (mostly pyrite). Drilling to date at Sullivan Gulch has delineated mineralization extending over a strike length of 1,000 m with a width of 200 m and a depth of 350 m. IP indicates the potential for mineralization to extend a further 900 m to the south of the southern-most drilled section of Sullivan Gulch.