---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-015156"
form_type: "8-K"
ticker: "USGO"
cik: "0001947244"
company_name: "U.S. GoldMining Inc."
filed_at: "2025-06-16T23:59:59+00:00"
generated_at: "2026-05-19T07:05:49.445471+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# U.S. GoldMining highlights Muddy Creek targets with rock samples up to 111.5 g/t Au at Whistler project

## Summary
- Muddy Creek mineral system covers ~6 km x 4 km gold geochemical footprint with intrusion-related signature.
- Historic rock grab samples returned 73 samples >1 g/t Au, 20 >10 g/t Au, peak 111.50 g/t Au at Upper Phoenix Creek.
- Average gold value of 285 historic rock samples is 3.03 g/t Au; soil samples include up to 5.29 g/t Au.
- Historic drilling on fringes returned 0.43 g/t Au over 38.8 m and 0.41 g/t Au over 45.0 m; high-tenor zones undrilled.
- Company plans phased exploration programs; start dates not determined yet.

## SEC filing metadata
- accession: 0001641172-25-015156
- form_type: 8-K
- ticker: USGO
- cik: 0001947244
- company_name: U.S. GoldMining Inc.
- filed_at: 2025-06-16T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1947244/000164117225015156/0001641172-25-015156-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1947244/000164117225015156/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-015156
- JSON: https://secwatch.observer/filing/0001641172-25-015156.json
- Plain text: https://secwatch.observer/filing/0001641172-25-015156.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.