Dakota Gold Corp. (NYSE: DC) has delineated gold mineralization over more than a mile in strike length, from north to south, at its Richmond Hill Gold Project in South Dakota.
Drill Hole Highlights
- RH23C-017 intersected 0.029oz/ton Au over 308.6 feet (0.99 grams/tonne over 93.5m northwest of the high-grade intercepts encountered in drill hole RH22C-013 (0.175oz/ton Au over 98.5 feet; 5.98 grams/tonne over 30.0m. RH23C-017 has continued to expand the significant tonnage demonstrated by Dakota Gold’s drilling at the Twin Tunnels Breccia.
- RH23C-029, RH23C-032 and RH23C033 were drilled for grade validation and metallurgical test work to support a maiden resource compilation in early 2024.
- The geologic model for Richmond Hill is evolving with the ongoing exploration drilling. Significant gold mineralization is not constrained only to the breccia bodies but also thicker, higher-grade intervals in the Precambrian wall rocks in the form of replacements and in stockworks.
“Our drilling continues to expand the Richmond Hill mineralization. We are excited to continue the step-out into untested sections of the property, especially where our new geologic understanding of ore controls has greatly improved,” Vice President of Exploration, James Berry, said.
“Furthermore, we are happy to begin our ramp-up of the metallurgical test programme that will be used to project gold recoveries and validate historical resource estimates at Richmond Hill.
“This work is being conducted in collaboration with Dakota Gold’s resource consultants to produce an S-K 1300 compliant resource that will include a comprehensive metallurgical characterization of the mineralization and preliminary optimization work, related to gold recovery.”
Exploration Update
Exploration at Richmond Hill is continuing along two related tracks; 1) exploration step-out drilling to expand the size of the extensive gold system around known breccia pipe bodies and other geologic and geophysical targets, and 2) infill drilling within historical resource areas.
The three infill and validation metallurgical holes reported here are the first with assay results from more than 32 holes planned. With assay results returned, sample composites for mineralized intercepts will be shipped to Dakota Gold’s metallurgical consultant for preliminary metallurgical characterization, mineralogic assessment and then used for further gold recovery optimization analysis that will be incorporated in future economic assessments. Replacement gold mineralization in shallow, overlying Cambrian carbonate rocks is also being confirmed by validation drilling.
The Richmond Hill grade validation/metallurgical drilling is now 70% complete and is expected to finish in mid-July. Construction of the geologic model, required for resources estimation, is in progress.
The company currently has four drills operating on its properties in the Homestake District of South Dakota, with two drills operating at the Maitland Gold Project and two drills operating at Richmond Hill.
The Maitland drills are targeting Homestake-hosted and Tertiary gold mineralization and the Richmond Hill drills are targeting Tertiary breccias and replacement mineralization. Richmond Hill is located 2.3 miles west of Maitland and 1.5 miles north of Coeur Mining, Inc.’s Wharf Mine. The Wharf Mine produced 79,768oz at 0.021oz/ton gold in 2022.
For further information please visit: https://dakotagoldcorp.com/
