Griffen Site Metal/Non-Metal
MSHA record for Griffen Site (mine ID 2402781). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Inspection activity
MSHA inspections since 2024
2
inspections on record
7
inspection hours
n/a
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Rate withheld: 7 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ownership history
- MRTE, Inc 2022 to 2025
- Helena Sand & Gravel, Inc. 2025 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2026 | 0 |
| 2025 | 2 |
| 2024 | 2 |
| 2023 | 1 |
| 2022 | 1 |
Source: MSHA quarterly employment and production, updated weekly.
Griffen Site sits in Cascade County, Montana, where the Census mining category is 0.7% of county employment.
Local economic context
ⓘ
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.Cascade County, Montana · Population 84,601
0.7%
Mining share of county employment
$66,203
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2026 Q2 | 0 | 0 | 0 | |
| 2026 Q1 | 0 | 0 | 0 | |
| 2025 Q4 | 316 | 0 | 0 | 0.0 |
| 2025 Q3 | 311 | 0 | 0 | 0.0 |
| 2025 Q2 | 87 | 0 | 0 | 0.0 |
| 2025 Q1 | 160 | 0 | 0 | 0.0 |
| 2024 Q4 | 82 | 0 | 0 | 0.0 |
| 2024 Q3 | 200 | 0 | 0 | 0.0 |
Show 8 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 585 | 0 | 0 | 0.0 |
| 2024 Q1 | 210 | 0 | 0 | 0.0 |
| 2023 Q4 | 120 | 0 | 0 | 0.0 |
| 2023 Q3 | 150 | 0 | 0 | 0.0 |
| 2023 Q2 | 52 | 0 | 0 | 0.0 |
| 2023 Q1 | 0 | 0 | 0 | |
| 2022 Q4 | 0 | 0 | 0 | |
| 2022 Q3 | 8 | 0 | 0 | 0.0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.