Hard Rock Mining | Notice of Major Amendment Application for Montana Resources, LLC – Continental Mine Complex – PERMIT NO. 00030

Montana Resources, LLC (MR) filed an application with the Department of Environmental Quality for an amendment (Amendment 012) to Hard Rock Mining Operating Permit No. 00030 under the Metal Mine Reclamation Act. MR currently operates the open pit mining and milling facilities at the Continental Mine Complex, located directly to the east and northeast of the communities of Butte and Walkerville in Butte-Silver Bow County.  

Amendment 012 would authorize construction to increase tailings disposal capacity by raising the embankment crest elevation of the Yankee Doodle Tailings Storage Facility (TSF) from the current elevation of 6,450 feet to 6,560 feet. The amendment would also authorize continued mining in the Continental Pit and Central Zone areas to align with known mineral reserves and extend the anticipated mine life by 25 years (from 2031 to 2056).  

 

Start Date: April 21, 2025  

End Date: TBD- after Final EIS + ROD 

 

Location: Butte-Silver Bow  

46.030593, -112.504506 

 

Associated Materials:

 
Legal notice  
 
Comment Period Closes: N/A  
 
Submit Comments To: DEQHardRock@mt.gov  
 

Millie Olsen 

Hard Rock Mining Section Supervisor 
Mining Bureau 
Department of Environmental Quality 
P.O. Box 200901 
Helena MT 59601 

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Tags: Public Notice and Hard Rock