grade assays at Richmond Hill
Dakota Gold (NYSE: DC) reported new assay results from expansion hole RH26C-432 at its Richmond Hill South Dakota gold project, including 26m at 11.36 g/t gold and 14.92 g/t silver (from ~75m) and RH26C-437 with 38m at 2.89 g/t gold and 8.18 g/t silver (from ~145m). Results will feed a prefeasibility study due by Dec. 31; shares rose ~1% to $4.51.
How this was made

The 30-second read
Why it matters
New expansion-hole assays report higher-grade pockets beyond the existing measured/indicated footprint, supporting the company’s stated goal of resource growth and improved project definition for the PFS.
Market read
Traders may reprice DC’s probability-weighted PFS outcomes as fresh high-grade intercepts extend mineralization and reinforce resource growth expectations.
What to watch
The article doesn’t provide updated resource totals, metallurgical recoveries, or capex/opex changes—key drivers that could offset assay optimism in the PFS.
Background
Dakota Gold is advancing a Richmond Hill open-pit/heap-leach gold project and compiling 2026/2025 infill and expansion drilling into a prefeasibility study due by Dec. 31.
Ticker impact
Dakota Gold reported new Richmond Hill expansion drill results, including RH26C-432 cutting 26m at 11.36 g/t gold.
Near-term upside bias as investors price improved resource growth and potential economics into the upcoming PFS.
The article discloses fresh, specific assay intervals and ties them to resource growth and PFS inputs, which can move sentiment and valuation expectations before the feasibility update.
Market effects
Adds incremental positive signal for US-listed gold developers’ open-pit/heap-leach projects, but impact is company-specific.
Limited regional spillover; activity is in South Dakota’s Richmond Hill project area.
No direct global macro linkage beyond general gold sentiment.
Counterpoint
Higher-grade intercepts may not translate into improved economics if continuity, metallurgy, or pit optimization assumptions fail in the PFS.
Key entities
- companyDakota Gold
US-listed developer advancing the Richmond Hill gold project; released new expansion drill assay results and PFS progress.
- assetRichmond Hill gold project
South Dakota oxide gold system targeted for conventional open-pit mining and heap leach processing; PFS due Dec. 31.
- utilityBlack Hills Energy
Secured construction slot for the project’s long-lead electrical substation.


