v3.26.1
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2026
Aug. 12, 2026
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2026  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Securities Act File Number 000-41349  
Entity Registrant Name Dakota Gold Corp.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 85-3475290  
Entity Address, Address Line One 106 Glendale Drive, Suite A  
Entity Address, City or Town Lead  
Entity Address, State or Province SD  
Entity Address, Postal Zip Code 57754  
City Area Code 605  
Local Phone Number 717-2540  
Title of 12(b) Security Common stock, par value $0.001 per share  
Trading Symbol DC  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   134,172,991
Entity Central Index Key 0001852353  
Document Fiscal Period Focus Q2  
Amendment Flag false