Montana Department of Environmental Quality About Us Permitting & Operator Assistance Public Participation

Hard Rock Mining | Bond Release and Proposed Bond Determination for Block Mountain Slate and Stone, Inc. – Multiple Sites – PERMIT NO. 00185 | Comment Period Closes October 16, 2026

  • September 16 2026

DEQ is seeking public comment on a bond release and proposed 5-year comprehensive bond determination. DEQ currently holds a reclamation bond in the amount of $98,069. DEQ is proposing to release $8,059 and retain $90,010 after releasing bond for completed reclamation tasks. In addition to the request for bond release, DEQ is conducting a comprehensive bond review. DEQ is proposing a bond increase of $63,669, from $90,010 to $153,679.

Location: Sanders County

  • Henry Creek 1: Township 19 North, Range 25 West, Section 6
  • Kunzer: Township 20 North, Range 25 West, Section 31
  • DNRC: Township 20 North, Range 25 West, Section 34
  • Bald Howard: Township 19 North, Range 25 West, Section 25
  • Banana Stone: Township 20 North, Range 26 West, Section 12
  • Locust Hill: Township 20 North, Range 26 West, Section 12

Associated Materials:

Legal Notice 


Comment Period Closes: October 16, 2026

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


Tags: Public Comment and Hard Rock