Mining Incidents

Mobile: 6 MSHA citations Metal/Non-Metal

Mobile Rock Crushing · Surface
Hamilton, Lincoln County, MT  ·  Intermittent
MSHA Mine ID: 2402728

Mobile has $617 in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2019
6
citations
1
significant & substantial
$617
proposed penalties
$617
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2019
11
inspections on record
98
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: 98 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Mobile has $617 in proposed MSHA penalties and $0 outstanding across 0 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$617
proposed penalties
$617
current assessed
$617
paid to date
$0
outstanding
5 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2022-06-30.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
16.7%
significant & substantial
0.0%
high negligence or reckless
16.7%
reasonably likely or greater
0.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 16.7% low, 83.3% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. Mobile Rock Crushing 2018 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 2
2023 2
2022 2
2021 2
2020 2
2019 3
Source: MSHA quarterly employment and production, updated weekly.

Mobile sits in Lincoln County, Montana, where the Census mining category is 1.4% 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.
Lincoln County, Montana · Population 20,656
1.4%
Mining share of county employment
$47,018
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 224 0 0 0.0
2025 Q4 395 0 0 0.0
2025 Q3 594 0 0 0.0
2025 Q2 0 0 0
2025 Q1 258 0 0 0.0
2023 Q2 45 0 0 0.0
2023 Q1 220 0 0 0.0
Show 15 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2022 Q4 144 0 0 0.0
2022 Q3 320 0 0 0.0
2022 Q2 260 1 0 3846.2
2022 Q1 350 0 0 0.0
2021 Q4 410 0 0 0.0
2021 Q3 240 0 0 0.0
2021 Q2 420 0 0 0.0
2021 Q1 100 0 0 0.0
2020 Q4 187 0 0 0.0
2020 Q3 435 0 0 0.0
2020 Q2 310 0 0 0.0
2020 Q1 150 0 0 0.0
2019 Q4 190 0 0 0.0
2019 Q3 185 4 1 21621.6
2019 Q2 925 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.