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Sundance Quarry: 1 recorded fatality Metal/Non-Metal

Controlled by Summit Inc
Crook County, WY  ·  Abandoned
MSHA Mine ID: 4800011

MSHA record for Sundance Quarry (mine ID 4800011). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
1
Total incidents
4
Years on record
1983–1988
Latest incident
Feb 1988
Ownership history
  1. Summit Materials Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.

Sundance Quarry 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.

Fatalities at this mine

1 recorded
April 15, 1983 WY · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver Fatality · MACHINERY
Summit Materials Inc · Caught in, under or between a moving and a stationary object

DOZER OPERATOR ENTERED AN AREA WHICH HAD BEEN STRIPPED OF TOP SOIL AND DRILLED FOR BLASTING. HE CAP ROCK LAY AT A 15 DEGREE SLOPE AND WAS WET. THE DOZER SLID SIDEWAYS FOR 50 FT, HITTING A HUM P IN THE CAP ROCK AND ROLLED. THE OPERATOR WAS CRUSHED. THE DOZER WAS MANUFACTURED IN DEC. OF 1968, RECEIVED BY CATERPILLAR DEALER 1/10/69, AND PURCHASED BY SUMMIT, INC. ON 3/13/69. VICTIM WAS

Reportable incidents

3 on file (excluding fatalities above)

1988 · 1 incident

February 15, 1988 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator OTHER
Summit Materials Inc · (Not Elsewhere Classified)

HE HAD BEEN OPERATING LOADER BEFORE HE HAD THE HEART ATTACK BUT AT THE TIME HE HAD IT HE WAS STANDING ON THE GROUND & HAD NOT COMPLAINED OF ILLNESS.

1984 · 1 incident

March 19, 1984 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Summit Materials Inc · Struck against a moving object

ROADING LOADER BACKWARDS DOWN HILL & LOST CONTROL

1983 · 1 incident

July 8, 1983 WY · Metal/Non-Metal MACHINERY
Summit Materials Inc · Accident type, without injuries

#24331 JOY AIR TRACK DRILL TIPPED OVER DAMAGING THE DRIFTER, MAST, HOSE. NO INJURY. PINS WHICH HOLD SPRING-LOADED PLUNGER ON LEFT TRACK DRILL LEVER SHEARED. OPERATOR RAN DRILL WITH DEFECTIVE D RIVE LEVER. WHEN OPERATOR STARTED THE COMPRESSOR THE AIR SURGE JARRED THE LEFT TRACK LEVER FROM THE NEUTRAL POSITION INTO REVERSE. THE DRILL, WHICH WAS ON SLOPE, TIPPED OVER.