Mining Incidents

Portable Screen Metal/Non-Metal

Controlled by Knife River Corporation
Missoula, Yellowstone County, MT  ·  Abandoned
MSHA Mine ID: 2402326

MSHA record for Portable Screen (mine ID 2402326). 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
Ownership history
  1. JTL Group, Inc. Missoula 2003 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2004 0
2003 1
Source: MSHA quarterly employment and production, updated weekly.

Portable Screen sits in Yellowstone 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.
Yellowstone County, Montana · Population 167,340
1.4%
Mining share of county employment
$74,400
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
2004 Q2 0 0 0
2004 Q1 0 0 0
2003 Q4 0 0 0
2003 Q2 191 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.