U.S. GoldMining Inc. has announced an exciting update regarding the exploration potential of its 100%-owned Whistler Gold-Copper Project, situated in the burgeoning West Susitna Mineral District of Alaska, approximately 160 kilometers west of Anchorage. The Company's extensive 53,700-acre land package encompasses three distinct gold ± copper ± silver mineral systems, each exhibiting significant potential for new discoveries.

The Whistler Project is host to the existing Whistler, Raintree, and Island Mountain deposits, which together form the current mineral resource estimate. However, U.S. GoldMining's recent geological analysis, incorporating data from the successful 2023 and 2024 drilling campaigns, relogging of historical drill core, surface mapping and sampling, and advanced geophysical interpretation, indicates that these known deposits represent only a fraction of the Project's overall prospectivity.

The three identified mineral systems are:

•             Whistler - Raintree: This system, which hosts the namesake Whistler and Raintree West deposits, is characterized by a large, approximately 5 x 5 km area containing multiple mapped porphyry intrusions. This "porphyry cluster" model suggests a high likelihood of discovering additional gold, copper, and silver mineralization in the vicinity of the existing deposits.

•             Island Mountain: Beyond the known Island Mountain gold deposit, this mineral system encompasses a +3 km diameter area of mapped intrusive rocks, revealing several undrilled porphyry or intrusion-related gold targets. These targets present compelling opportunities for expanding the gold resource base within this system.

•             Muddy Creek: This system is defined by a substantial 6 km x 4 km gold-in-soil geochemical footprint exhibiting an intrusion-related gold signature.

U.S. GoldMining is currently engaged in a detailed analysis to rank and prioritize the numerous exploration targets identified across these three mineral systems. The goal is to develop well-defined, phased exploration programs that could be initiated as early as this summer. These programs are designed to build upon the encouraging results of the previous two field seasons.

Tim Smith, Chief Executive Officer of U.S. GoldMining, emphasized the broader potential of the Whistler Project, stating, "The three Au-Cu-Ag porphyry deposits which comprise the existing Whistler Project mineral resource estimate - Whistler, Raintree and Island Mountain - occupy only ~1% of the Company's land holdings, highlighting the broader potential for the Project. Across the Project's large land package, we have identified numerous additional porphyry or intrusion related drill targets."

The Company's forward-looking strategy involves running these exploration programs in parallel with the recently announced initial economic assessment for the known gold-copper deposits. The Whistler Project benefits from its strategic location within a favorable mining jurisdiction in Alaska, which is currently experiencing strong political support at both the state and federal levels.