SONNENSCHEIN AND WILLIAMS HAD BROUGHT A 651 CATERPILLAR SCRAPER INTO THE SHOP TO REPLACE ROUTER BITS AND CUTTING EDGES. JUST BEFORE COMPLETION OFTHE JOB ONE OR MORE PIECES OF FROZEN DIRT, SNOE SNOW & ICE WEIGHING APPROX 800 POUNDS FELL ON SONNENSCHEIN. HE SUFFERED A FRACTURED LEFT TIBIA A FRACTURE OF THE PELVIS A FRACTURE MANDIBLE AND A LACERATION OF THE CHIN WITH MULTIPLE CONTUSIO
Gas Hills Mine: 4 reportable incidents Metal/Non-Metal
Umetco Minerals Corp
· Surface
Controlled by
Union Carbide Corp
Fremont County,
WY
·
Abandoned
MSHA Mine ID: 4800862
Gas Hills Mine has had no fatalities among 4 reportable incidents since 1983.
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- Fatalities
- 0
- Total incidents
- 4
- Years on record
- 1983
- Latest incident
- Dec 1983
Ownership history
- Umetco Minerals Corp 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 1986 | 6 |
| 1985 | 5 |
| 1984 | 18 |
| 1983 | 103 |
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.
Gas Hills Mine sits in Fremont County, Wyoming, where the Census mining category is 3.1% 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.Fremont County, Wyoming · Population 39,472
3.1%
Mining share of county employment
$64,646
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
No fatalities recorded at this mine.
Reportable incidents
4 on file1983 · 4 incidents
December 7, 1983
WY · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
HANDLING OF MATERIALS
Umetco Minerals Corp · Struck by falling object
April 11, 1983
WY · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
SLIP OR FALL OF PERSON
Umetco Minerals Corp · Fall from machine
GETTING OFF D-9 CAT. EMPL STEPPED FROM TRACK TO DOZER ARM,AS WEIGHT WAS PUT ON ARM HIS FOOT SLIPPED .FELL BACKWARD AND GRABBED FOR HAND HOLD ON FENDER,TWISTING HIS BACK.
April 5, 1983
WY · Metal/Non-Metal
greaser, grease man, oiler, lube man, dragline oiler
HANDLING OF MATERIALS
Umetco Minerals Corp · Over-exertion (Not Elsewhere Classified)
EMPLOYEE AWS MOUNTING LADDER TO CAB OF 659-B CATTERPILLAR END DUMP TRUCK STRAINED MUSCLE OF LEFTR LEG AT OUTSIDE OF HIS KNEE
February 22, 1983
WY · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
HANDTOOLS (NONPOWERED)
Umetco Minerals Corp · Struck by... (Not Elsewhere Classified)
EMPLOYEE WAS OPENING A BUCKET OF FIRE EXTINGUISHER POWDER WITH A POCKET KNIFE KNIFE SLIPPED CUTTING LEFT SMALL FINGER REQUIRING 3 SUTURES TO CLOSE