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Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2024
Mar. 28, 2025
Jun. 30, 2024
Cover [Abstract]      
Registrant Name Dakota Gold Corp.    
Registrant CIK 0001852353    
Current Fiscal Year End Date --12-31    
Document Type 10-K    
Document Annual Report true    
Entity File Number 000-41349    
Document Financial Statement Error Correction [Flag] false    
Document Period End Date Dec. 31, 2024    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 85-3475290    
Entity Address, Address Line One 106 Glendale Drive    
Entity Address, City or Town Suite A, 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(g) Security Common stock, par value $0.001 per share    
Trading Symbol DC    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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 Shell Company false    
Entity Public Float     $ 230,894,927
Entity Common Stock, Shares Outstanding   99,476,843  
Amendment Flag false    
Document Transition Report false    
Entity Ex Transition Period false    
Auditor Firm ID 42    
Auditor Name Ernst & Young LLP    
Auditor Location Denver, Colorado, USA