Mining Incidents

Missouri Mine: 6 reportable incidents Metal/Non-Metal

Crook County, WY  ·  Abandoned
MSHA Mine ID: 4801125

MSHA record for Missouri Mine (mine ID 4801125). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
6
Years on record
1984–1986
Latest incident
Jun 1986
Ownership history
  1. Federal Bentonite Div/Aurora Metal Company 1950 to 1984
  2. Federal Ore & Chemicals Inc 1984 to 1987
  3. Federal Ore & Chemicals Inc 1987 to present
Source: MSHA controller and operator history, updated weekly.

Missouri Mine sits in Crook County, Wyoming, where the Census mining category is 7.1% 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.
Crook County, Wyoming · Population 7,339
7.1%
Mining share of county employment
$71,209
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
No fatalities recorded at this mine.

Reportable incidents

6 on file

1986 · 2 incidents

June 19, 1986 WY · Metal/Non-Metal superintendent HANDLING OF MATERIALS
Federal Ore & Chemicals Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS UN7OUPLING WATER PUMP DISCHARGE HOSE FROM PUMP WHEN THE HOSE CAME LOOSE IT WHIPPED BACK HITTING THE RIGHT CHEEK BONE CAUSING A LACERATION.

1985 · 2 incidents

May 24, 1985 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Federal Ore & Chemicals Inc · Fall from machine

EMPLOYEE WAS DISMOUNTING FROM A SCRAPER HE STEPPED IN A HOLE IN THE GROUND TWISTED HIS ANKLE FELL ON HIS WRIST

1984 · 2 incidents

July 9, 1984 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Federal Ore & Chemicals Inc · Struck against a moving object

EMPLOYEE STATED THAT HIS BACK BOTHERED HIM PERIODICALLY. HE FELT IT WAS DUE TO SCRAPER OPERATIONS. HIS CHIROPRACTOR AGREED. CONDITION BECAME WORSE AND EMPLOYEE LOST TIME FROM WORK.

January 16, 1984 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Federal Bentonite Div/Aurora Metal Company · Struck against a moving object

SCRAPER OPERATOR WAS ATTEMEPTING TO REMOVE FROZEN VERTICAL (2 1/2 FT. HIGH). CAN HUNG UP WHILE TRYING TO DISLODGE SCRAPER, RIGHT FRONT TIRE SUDDENLY MOUNTED A BERM, CAUSING THE TRACTOR TO PITCH VIOLENTLY. OPERATOR STRUCK HEAD ON INSIDE OF CAB.