Bull Mountains Mine No 1

Active Underground Coal

Operator: Signal Peak Energy LLC

Controller: Global Mining Group LLC

Location: Roundup, Musselshell County, MT

Employees: 248

2,247
Violations
243
S&S Violations
193
Accidents
$1.7M
Penalties

Recent Violations

View all 2,247 →
Date Section S&S Negligence Penalty
02/26/2026 75.1100-3 Non-S&S ModNegligence $0
02/26/2026 75.503 Non-S&S ModNegligence $0
02/25/2026 75.1725(a) S&S ModNegligence $0
02/25/2026 75.351(k) Non-S&S ModNegligence $0
02/24/2026 75.351(k) Non-S&S ModNegligence $0
02/24/2026 75.1100-3 Non-S&S ModNegligence $0
02/23/2026 77.505 Non-S&S ModNegligence $0
02/12/2026 77.904 Non-S&S ModNegligence $0
02/11/2026 75.1910(j) Non-S&S LowNegligence $0
02/11/2026 75.1910(f) Non-S&S LowNegligence $0
02/10/2026 75.1909(d) Non-S&S ModNegligence $0
02/10/2026 75.351(b)(3) Non-S&S LowNegligence $0
01/26/2026 75.1101-6 Non-S&S LowNegligence $0
01/07/2026 75.400 Non-S&S LowNegligence $151
01/07/2026 75.400 Non-S&S ModNegligence $267
01/06/2026 75.400 Non-S&S LowNegligence $151
01/06/2026 75.400 Non-S&S LowNegligence $151
01/06/2026 75.380(d)(7)(vi) Non-S&S ModNegligence $549
01/06/2026 75.1909(d) Non-S&S ModNegligence $267
12/04/2025 75.503 Non-S&S ModNegligence $226

Accidents & Injuries

View all 193 →
Date Classification Injury Days Lost
10/29/2025 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None
09/04/2025 FALL OF ROOF OR BACK ACCIDENT ONLY None
08/25/2025 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None
07/23/2025 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 1d lost
07/17/2025 FIRE ACCIDENT ONLY None
07/15/2025 MACHINERY DAYS AWAY FROM WORK ONLY 3d lost
05/22/2025 OTHER INJURIES DUE TO NATURAL CAUSES None
05/13/2025 MACHINERY ALL OTHER CASES (INCL 1ST AID) None
04/11/2025 HANDTOOLS (NONPOWERED) DAYS AWAY FROM WORK ONLY 3d lost
01/11/2025 FALL OF ROOF OR BACK PERM TOT OR PERM PRTL DISABLTY None

Inspections

View all 228 →
Begin End Hours Inspectors
01/20/2026 01/23/2026 16.00 1
01/05/2026 419.75 5
10/23/2025 12/18/2025 555.25 8
09/22/2025 12/22/2025 52.00 1
09/05/2025 09/11/2025 63.50 2
07/23/2025 08/04/2025 42.00 1
07/05/2025 09/19/2025 465.00 8
05/19/2025 05/22/2025 21.50 2
04/04/2025 06/11/2025 533.00 9
01/05/2025 03/18/2025 684.75 7

Mine Details

MSHA Mine ID2401950
Mine TypeUnderground
StatusActive
CommodityCoal
SIC DescriptionCoal (Bituminous)
Employees248
Days/Week7.0
Hours/Shift12.0
Coordinates46.4508330, -108.7066670
Nearest TownRoundup

Frequently Asked Questions

How many MSHA violations does Bull Mountains Mine No 1 have?

Bull Mountains Mine No 1 has 2247 MSHA violations on record, of which 243 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $1.7M.

What type of mine is Bull Mountains Mine No 1?

Bull Mountains Mine No 1 is a Underground mine producing Coal, located in Roundup, Musselshell County, MT. It currently has 248 employees.

Has anyone been injured or killed at Bull Mountains Mine No 1?

According to MSHA records, Bull Mountains Mine No 1 has 193 reported accident/injury records and 1 fatalities on file.

Who operates Bull Mountains Mine No 1?

Bull Mountains Mine No 1 is operated by Signal Peak Energy LLC and controlled by Global Mining Group LLC. MSHA Mine ID: 2401950.