Mining Incidents

Crusher #1: 59 MSHA citations Metal/Non-Metal

Controlled by Sean D Frost
Lovell, Big Horn County, WY  ·  Intermittent
MSHA Mine ID: 4801681

Crusher #1 has $11K 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
1
Years on record
2013
Latest incident
Sep 2013
Compliance record
MSHA citations since 2008
59
citations
10
significant & substantial
$10,929
proposed penalties
$10,929
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
41
inspections on record
556
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: 556 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Crusher #1 has $11K 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.
$11K
proposed penalties
$11K
current assessed
$11K
paid to date
$0
outstanding
56 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-02-12.
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.
17.9%
significant & substantial
23.2%
high negligence or reckless
17.9%
reasonably likely or greater
30.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 1.8% low, 75.0% moderate, 23.2% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2022-01-12, 4 years ago
0%
of limit-tested samples over the exposure limit
11
samples
3
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz4
  • Respirable dust, <.1mg4
  • Unlisted Particulate, respirable, <1% Qtz2
  • Cristobalite, respirable1
Show the individual readings (11)
Date Contaminant Concentration Limit Conc / limit Occupation
2022-01-12 Respirable dust, <.1mg 0 Bulldozer Operator
2022-01-12 Quartz, respirable, >1% Qtz 0.18 Crusher Oper/Worker
2022-01-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-11-06 Unlisted Particulate, respirable, <1% Qtz 0.18 Front-end Loader Operator
2013-11-06 Unlisted Particulate, respirable, <1% Qtz 0.37 Cleanup Man
2012-06-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2012-06-27 Quartz, respirable, >1% Qtz 0.63 0.69 0.91 Crusher Oper/Worker
2012-06-27 Cristobalite, respirable 0 Crusher Oper/Worker
2009-10-27 Quartz, respirable, >1% Qtz 0.25 1.45 0.17 Crusher Oper/Worker
2009-10-27 Quartz, respirable, >1% Qtz 0.18 1.27 0.14 Front-end Loader Operator
2009-10-27 Respirable dust, <.1mg 0 Front-end Loader Operator
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Ownership history
  1. Frost Rock Products Company 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 6
2025 5
2024 6
2023 6
2022 6
2021 4
2020 6
2019 6
2018 6
2017 6
2016 4
2015 5
2014 6
2013 5
2012 5
2011 5
2010 4
2009 5
2008 3
2007 2
2006 3
2005 1
Source: MSHA quarterly employment and production, updated weekly.

Crusher #1 sits in Big Horn County, Wyoming, where the Census mining category is 6.4% 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.
Big Horn County, Wyoming · Population 11,737
6.4%
Mining share of county employment
$60,547
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 2,438 0 0 0.0
2026 Q1 1,305 0 0 0.0
2025 Q4 1,531 0 0 0.0
2025 Q3 1,939 0 0 0.0
2025 Q2 3,880 0 0 0.0
2025 Q1 2,195 8 2 3644.6
2024 Q4 1,430 0 0 0.0
2024 Q3 2,458 5 1 2034.2
Show 73 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 3,655 0 0 0.0
2024 Q1 2,522 3 0 1189.5
2023 Q4 2,544 0 0 0.0
2023 Q3 3,644 0 0 0.0
2023 Q2 3,173 6 1 1891.0
2023 Q1 2,380 3 0 1260.5
2022 Q4 1,618 0 0 0.0
2022 Q3 3,205 0 0 0.0
2022 Q2 2,994 1 0 334.0
2022 Q1 1,887 7 3 3709.6
2021 Q4 1,746 0 0 0.0
2021 Q3 705 1 0 1418.4
2021 Q2 1,796 0 0 0.0
2021 Q1 734 0 0 0.0
2020 Q4 1,308 0 0 0.0
2020 Q3 3,040 1 0 328.9
2020 Q2 2,889 0 0 0.0
2020 Q1 2,151 1 1 464.9
2019 Q4 1,194 0 0 0.0
2019 Q3 2,275 0 0 0.0
2019 Q2 3,195 0 0 0.0
2019 Q1 2,412 1 0 414.6
2018 Q4 2,399 1 0 416.8
2018 Q3 3,692 2 0 541.7
2018 Q2 3,553 0 0 0.0
2018 Q1 2,284 0 0 0.0
2017 Q4 2,119 0 0 0.0
2017 Q3 2,659 1 0 376.1
2017 Q2 4,246 0 0 0.0
2017 Q1 2,180 4 1 1834.9
2016 Q4 1,676 0 0 0.0
2016 Q3 2,006 0 0 0.0
2016 Q2 1,696 0 0 0.0
2016 Q1 1,401 0 0 0.0
2015 Q4 1,110 0 0 0.0
2015 Q3 2,480 0 0 0.0
2015 Q2 2,766 1 0 361.5
2015 Q1 4 0 0 0.0
2014 Q4 4 0 0 0.0
2014 Q3 3,426 0 0 0.0
2014 Q2 2,469 1 0 405.0
2014 Q1 2,143 1 0 466.6
2013 Q4 1,066 3 1 2814.3
2013 Q3 3,304 0 0 0.0
2013 Q2 2,360 0 0 0.0
2013 Q1 574 0 0 0.0
2012 Q3 2,071 0 0 0.0
2012 Q2 1,373 3 0 2185.0
2012 Q1 458 0 0 0.0
2011 Q2 3,540 0 0 0.0
2011 Q1 1,169 2 0 1710.9
2010 Q4 2,420 0 0 0.0
2010 Q3 2,891 0 0 0.0
2010 Q2 2,732 0 0 0.0
2010 Q1 2,330 0 0 0.0
2009 Q4 2,058 1 0 485.9
2009 Q3 2,436 0 0 0.0
2009 Q2 2,552 0 0 0.0
2009 Q1 1,904 0 0 0.0
2008 Q4 1,699 0 0 0.0
2008 Q3 733 0 0 0.0
2008 Q2 1,516 1 0 659.6
2008 Q1 1,400 0 0 0.0
2007 Q4 1,030 0 0 0.0
2007 Q3 1,042 0 0 0.0
2007 Q2 498 0 0 0.0
2007 Q1 696 0 0 0.0
2006 Q4 1,161 0 0 0.0
2006 Q3 643 0 0 0.0
2006 Q2 647 0 0 0.0
2006 Q1 1,236 0 0 0.0
2005 Q4 0 0 0
2005 Q3 10 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2013 · 1 incident

September 11, 2013 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Frost Rock Products Company · Struck by... (Not Elsewhere Classified)

There were a few good sized rocks wedged in a vibrating grizzly feeder. Employee attempted to pry the wedged rocks with a large bar. One came free, but rolled into his ankle, and fractured his ankle