Belle/Colony Mine
Active
Surface
Nonmetal
Operator: American Colloid Company
Controller: Minerals Technologies Inc
Location: Colony, Crook County, WY
Employees: 77
235
Violations
30
S&S Violations
85
Accidents
$48K
Penalties
Recent Violations
View all 235 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 08/26/2025 | 56.14116(a) | Non-S&S | LowNegligence | $151 |
| 08/26/2025 | 56.14100(b) | Non-S&S | ModNegligence | $151 |
| 08/26/2025 | 56.12030 | Non-S&S | LowNegligence | $151 |
| 08/26/2025 | 56.14207 | Non-S&S | LowNegligence | $151 |
| 08/26/2025 | 56.14132(a) | Non-S&S | LowNegligence | $151 |
| 08/20/2025 | 46.9(a) | Non-S&S | ModNegligence | $151 |
| 08/20/2025 | 56.12008 | Non-S&S | ModNegligence | $151 |
| 08/20/2025 | 56.14101(a)(3) | Non-S&S | ModNegligence | $151 |
| 08/20/2025 | 56.14103(b) | Non-S&S | ModNegligence | $151 |
| 08/20/2025 | 56.4201(a)(2) | Non-S&S | LowNegligence | $151 |
| 08/19/2025 | 56.12013(b) | Non-S&S | ModNegligence | $165 |
| 08/19/2025 | 56.4402 | Non-S&S | LowNegligence | $151 |
| 07/28/2025 | 56.9101 | S&S | LowNegligence | $1,320 |
| 03/13/2025 | 56.14130(i) | S&S | ModNegligence | $1,037 |
| 03/11/2025 | 56.12030 | Non-S&S | ModNegligence | $151 |
| 03/10/2025 | 56.12030 | Non-S&S | ModNegligence | $151 |
| 03/10/2025 | 56.14207 | Non-S&S | ModNegligence | $151 |
| 03/10/2025 | 56.12030 | Non-S&S | ModNegligence | $151 |
| 03/10/2025 | 56.4201(a)(1) | Non-S&S | ModNegligence | $151 |
| 03/10/2025 | 56.12025 | Non-S&S | ModNegligence | $177 |
Accidents & Injuries
View all 85 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 10/21/2025 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 21d restricted |
| 07/28/2025 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 9d restricted |
| 07/23/2025 | MACHINERY | DAYS AWAY FROM WORK ONLY | None |
| 03/13/2025 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 125d lost, 70d restricted |
| 02/10/2025 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 4d restricted |
| 12/03/2024 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 49d lost, 65d restricted |
| 05/17/2024 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 6d restricted |
| 02/17/2024 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 8d lost, 51d restricted |
| 01/04/2024 | EXPLODING VESSELS UNDER PRESSURE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 08/30/2023 | POWERED HAULAGE | ALL OTHER CASES (INCL 1ST AID) | None |
Inspections
View all 74 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 12/03/2025 | 12/17/2025 | 40.00 | 1 |
| 08/13/2025 | 09/03/2025 | 68.50 | 3 |
| 03/10/2025 | 03/27/2025 | 64.00 | 2 |
| 05/22/2024 | 05/22/2024 | 5.50 | 1 |
| 05/02/2024 | 06/13/2024 | 90.50 | 1 |
| 02/17/2024 | 02/26/2024 | 14.50 | 1 |
| 12/18/2023 | 12/19/2023 | 18.00 | 1 |
| 11/27/2023 | 12/15/2023 | 88.50 | 1 |
| 09/05/2023 | 09/14/2023 | 37.00 | 1 |
| 05/17/2023 | 05/17/2023 | 1.25 | 1 |
Mine Details
MSHA Mine ID4800888
Mine TypeSurface
StatusActive
CommodityNonmetal
SIC DescriptionBentonite
Employees77
Days/Week5.0
Hours/Shift12.0
Coordinates44.7102780, -103.8997220
Nearest TownColony
Related Mines
BPM Colony Mill
Belle Fouche, SD, Crook County, WY
319 violations
Active
COLONY EAST MILL
Belle Fourche, Crook County, WY
264 violations
Active
Lovell Mill
Lovell, Big Horn County, WY
252 violations
Active
COLONY WEST MILL
Colony, Crook County, WY
237 violations
Active
GASCOYNE MINE & MILL
Reeder, Bowman County, ND
221 violations
Active
BELLE FOURCHE MILL
Belle Fourche, Butte County, SD
214 violations
Active
Sandy Ridge Mill
Letohatchee, Lowndes County, AL
179 violations
Active
BPM Colony Mine
Colony, Crook County, WY
120 violations
Active
Frequently Asked Questions
How many MSHA violations does Belle/Colony Mine have?
Belle/Colony Mine has 235 MSHA violations on record, of which 30 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $48K.
What type of mine is Belle/Colony Mine?
Belle/Colony Mine is a Surface mine producing Nonmetal, located in Colony, Crook County, WY. It currently has 77 employees.
Has anyone been injured or killed at Belle/Colony Mine?
According to MSHA records, Belle/Colony Mine has 85 reported accident/injury records and 0 fatalities on file.
Who operates Belle/Colony Mine?
Belle/Colony Mine is operated by American Colloid Company and controlled by Minerals Technologies Inc. MSHA Mine ID: 4800888.