U.S. GoldMining Inc.
For the period ended Sep 28, 2026. Filed Sep 28, 2026.
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Sep 28, 2026 · Filed Sep 28, 2026
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EX-99.1 · 2026 Surface Exploration Program
2026 Surface Exploration Program
In addition to the 7,493-meter diamond core program targeting gold-copper porphyry mineralization under glacial till cover at the Whistler Orbit, the objective of the 2026 summer field season was to advance the Company’s knowledge of the geological controls on areas of known outcropping Au + Cu ± Ag ± Sb mineralization identified from past exploration campaigns, including follow-up of historical rock grab sampling. Over the course of the 2026 field season, reconnaissance geological mapping, prospecting and rock grab sampling were completed at two areas north of the Whistler Orbit (also referred to as the Whistler-Raintree mineral system) and at the Island Mountain and Muddy Creek mineral systems.
In total, 58 rock grab samples were collected to characterize gold-copper abundance and mineralogical/geological associations. In addition, 12 geochronological samples were collected to help categorize the relative age of host intrusions and to define fertile magmatic suites for potential Au-Cu mineralization. Also, 68 samples were collected at the Long Lake Hills prospect area for hyperspectral analysis which helps to characterize subtle mineral alteration species associated with porphyry mineralization.
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