Key Takeaway
Glenrock Mine 01 is a active surface mine producing SandAndGravel, located in Glenrock, Converse County, WY. It has 18 violations on record (5 S&S) and $3K in proposed penalties. Operated by Powder River Proppants, LLC.
Glenrock Mine 01
Operator: Powder River Proppants, LLC
Controller: BGD LLC; Founders of PRP LLC
Location: Glenrock, Converse County, WY
Employees: 10
Recent Violations
View all 18 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 10/14/2025 | 56.14109 | S&S | ModNegligence | $226 |
| 10/09/2025 | 56.3430 | Non-S&S | ModNegligence | $151 |
| 10/09/2025 | 56.14206(b) | Non-S&S | ModNegligence | $151 |
| 10/09/2025 | 56.14132(a) | Non-S&S | LowNegligence | $151 |
| 09/17/2025 | 56.11001 | S&S | HighNegligence | $504 |
| 09/11/2025 | 56.9101 | S&S | LowNegligence | $151 |
| 07/18/2025 | 50.30(a) | Non-S&S | ModNegligence | $151 |
| 07/17/2025 | 56.4201(a)(1) | Non-S&S | LowNegligence | $151 |
| 03/19/2025 | 50.30(a) | Non-S&S | ModNegligence | $151 |
| 03/18/2025 | 56.12018 | Non-S&S | ModNegligence | $151 |
| 03/18/2025 | 56.12017 | S&S | ModNegligence | $165 |
| 03/11/2025 | 56.14112(b) | Non-S&S | LowNegligence | $0 |
| 03/11/2025 | 56.14105 | S&S | ModNegligence | $0 |
| 03/11/2025 | 50.10(b) | Non-S&S | ModNegligence | $0 |
| 11/14/2024 | 56.12028 | Non-S&S | ModNegligence | $147 |
| 11/13/2024 | 56.18002(b) | Non-S&S | ModNegligence | $147 |
| 11/13/2024 | 56.14107(a) | Non-S&S | ModNegligence | $147 |
| 11/13/2024 | 56.12028 | Non-S&S | ModNegligence | $147 |
Accidents & Injuries
View all 4 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/10/2026 | STEPPING OR KNEELING ON OBJECT | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 12/12/2025 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 09/11/2025 | MACHINERY | DAYS AWAY FROM WORK ONLY | 2d lost |
| 03/11/2025 | HOISTING | DAYS AWAY FROM WORK ONLY | None |
Inspections
View all 6 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/09/2025 | 10/20/2025 | 47.00 | 1 |
| 09/15/2025 | 09/30/2025 | 55.00 | 2 |
| 07/17/2025 | 07/19/2025 | 28.00 | 1 |
| 03/18/2025 | 03/31/2025 | 26.50 | 1 |
| 03/11/2025 | 03/19/2025 | 49.50 | 1 |
| 11/12/2024 | 11/19/2024 | 30.00 | 1 |
Mine Details
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Frequently Asked Questions
How many MSHA violations does Glenrock Mine 01 have?
Glenrock Mine 01 has 18 MSHA violations on record, of which 5 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $3K.
What type of mine is Glenrock Mine 01?
Glenrock Mine 01 is a Surface mine producing SandAndGravel, located in Glenrock, Converse County, WY. It currently has 10 employees.
Has anyone been injured or killed at Glenrock Mine 01?
According to MSHA records, Glenrock Mine 01 has 4 reported accident/injury records and 0 fatalities on file.
Who operates Glenrock Mine 01?
Glenrock Mine 01 is operated by Powder River Proppants, LLC and controlled by BGD LLC; Founders of PRP LLC. MSHA Mine ID: 4801891.