Key Takeaway
Montana Solid Rock Quarry #4 is a intermittent surface mine producing Stone, located in Plains, Sanders County, MT. It has 44 violations on record (16 S&S) and $6K in proposed penalties. Operated by Montana Solid Rock Quarry Inc.
Montana Solid Rock Quarry #4
Operator: Montana Solid Rock Quarry Inc
Controller: Robyn Duffy; Thomas Duffy
Location: Plains, Sanders County, MT
Employees: 7
Recent Violations
View all 44 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 06/04/2025 | 56.23002(a) | Non-S&S | LowNegligence | $151 |
| 06/04/2025 | 56.20003(c) | S&S | ModNegligence | $151 |
| 06/04/2025 | 56.4201(a) | Non-S&S | ModNegligence | $151 |
| 03/12/2024 | 56.14100(b) | Non-S&S | ModNegligence | $147 |
| 03/12/2024 | 56.14100(b) | Non-S&S | ModNegligence | $147 |
| 03/12/2024 | 56.14207 | Non-S&S | ModNegligence | $147 |
| 04/29/2021 | 56.14100(a) | Non-S&S | ModNegligence | $125 |
| 04/29/2021 | 56.14101(a)(2) | Non-S&S | ModNegligence | $125 |
| 04/29/2021 | 56.9200(d) | S&S | ModNegligence | $328 |
| 06/04/2020 | 56.4601 | Non-S&S | ModNegligence | $123 |
| 10/16/2019 | 50.30(a) | Non-S&S | ModNegligence | $123 |
| 04/09/2019 | 56.16005 | Non-S&S | ModNegligence | $121 |
| 11/02/2017 | 56.18010 | Non-S&S | ModNegligence | $116 |
| 11/01/2017 | 56.14100(b) | S&S | ModNegligence | $126 |
| 11/01/2017 | 56.16007(b) | Non-S&S | ModNegligence | $116 |
| 11/01/2017 | 56.14100(b) | S&S | ModNegligence | $116 |
| 10/18/2016 | 50.30(a) | Non-S&S | ModNegligence | $114 |
| 10/18/2016 | 56.14103(b) | Non-S&S | ModNegligence | $114 |
| 10/18/2016 | 56.4200(a)(1) | Non-S&S | ModNegligence | $114 |
| 10/18/2016 | 56.16005 | Non-S&S | ModNegligence | $114 |
Accidents & Injuries
View all 5 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 12/16/2014 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 134d lost |
| 11/21/2014 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 06/02/2008 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | None |
| 04/11/2008 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 5d lost |
| 07/17/2006 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 45d lost |
Inspections
View all 38 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 06/16/2025 | 06/20/2025 | 7.25 | 1 |
| 06/02/2025 | 06/05/2025 | 0.00 | 0 |
| 06/10/2024 | 06/11/2024 | 4.00 | 1 |
| 03/19/2024 | 03/19/2024 | 5.00 | 1 |
| 03/11/2024 | 03/12/2024 | 14.25 | 1 |
| 07/12/2023 | 07/13/2023 | 12.50 | 1 |
| 04/20/2022 | 04/21/2022 | 9.75 | 1 |
| 04/29/2021 | 04/29/2021 | 8.50 | 1 |
| 06/10/2020 | 06/10/2020 | 2.00 | 1 |
| 06/04/2020 | 06/04/2020 | 13.50 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Montana Solid Rock Quarry #4 have?
Montana Solid Rock Quarry #4 has 44 MSHA violations on record, of which 16 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $6K.
What type of mine is Montana Solid Rock Quarry #4?
Montana Solid Rock Quarry #4 is a Surface mine producing Stone, located in Plains, Sanders County, MT. It currently has 7 employees.
Has anyone been injured or killed at Montana Solid Rock Quarry #4?
According to MSHA records, Montana Solid Rock Quarry #4 has 5 reported accident/injury records and 0 fatalities on file.
Who operates Montana Solid Rock Quarry #4?
Montana Solid Rock Quarry #4 is operated by Montana Solid Rock Quarry Inc and controlled by Robyn Duffy; Thomas Duffy. MSHA Mine ID: 2402433.