Mining Incidents

Kaycee Mine Metal/Non-Metal

Kaycee, Johnson County, WY  ·  Intermittent
MSHA Mine ID: 4800877

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Fatalities
0
Total incidents
28
Years on record
2001–2026
Latest incident
May 2026
Compliance record
MSHA citations since 2001
121
citations
21
significant & substantial
$22,139
proposed penalties
$21,471
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 6,280 2 1 318.5
2025 Q3 7,943 4 0 503.6
2025 Q1 6,552 4 0 610.5
2024 Q4 7,314 0 0 0.0
2024 Q3 7,242 0 0 0.0
2024 Q2 8,740 2 0 228.8
2024 Q1 6,833 11 2 1609.8
2023 Q4 7,952 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

28 on file

2026 · 2 incidents

May 4, 2026 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Black Hills Bentonite LLC · Struck by flying object

Contractor EE was repairing a ripper tooth from a D10 Dozer. EE hit the ripper tooth with a hammer a couple of times to get it in place for the retaining pin. A piece of metal sheared off of the ripper and embedded into the EE's left arm. EE eventually went to the ER for treatment. It was removed and EE was prescribed antibiotics.

February 17, 2026 WY · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
Black Hills Bentonite LLC · Over-exertion (Not Elsewhere Classified)

EE was loading 18" culverts onto a trailer when one became unstable. EE tried to stop and reload it back onto the trailer. EE felt a pop on the inside of right elbow. EE suffered a torn distal biceps tendon.

2025 · 1 incident

June 24, 2025 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Black Hills Bentonite LLC · Fall onto or against objects

EE was cleaning out a scraper bowl when they slipped and fell backwards into the bowl. EE was waiting on a doctor's appointment for follow up. EE is now on injury leave awaiting further tests and treatment.

2024 · 3 incidents

September 18, 2024 WY · Metal/Non-Metal master mechanic, foreman, supervisor SLIP OR FALL OF PERSON
Black Hills Bentonite LLC · Fall from machine

EE was washing out a loader engine deck. EE descended ladder, slipped on the cab step that was covered in wet bentonite and oil, and fell on their right hip/side. EE injured their right hip area and neck.

July 11, 2024 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Black Hills Bentonite LLC · Struck by... (Not Elsewhere Classified)

Employee was trying to dislodge a rock from between discs on tractor and used a hammer and a screwdriver. Employee hit the top to their left hand with the hammer when the rock broke free.

2022 · 1 incident

July 20, 2022 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Black Hills Bentonite LLC · Struck against a moving object

Employee was ripping rock with a dozer, when the dozer tracked over a rock and dropped. The employee's back started hurting, and they called their supervisor and went home for the day to go see a doctor. Employee has seen a doctor but states they have not gotten their paperwork from the doctor yet 07/25/2022

2021 · 2 incidents

August 23, 2021 WY · Metal/Non-Metal scraper-loader operator SLIP OR FALL OF PERSON
Black Hills Bentonite LLC · Fall from machine

Employee was exiting 627G Scraper when they missed a step while descending. Employee fell backwards and landed on their lower back area and hips.

July 27, 2021 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Black Hills Bentonite LLC · Struck against a moving object

Employee was operating a scraper, transferring bentonite and ran over a large rock on the edge of the haul road. The resulting impact from rolling over the rock jarred and strained the employees lower back.

2017 · 1 incident

July 3, 2017 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Black Hills Bentonite LLC · Struck against a moving object

Employee was driving a field tractor when the right tire smacked into a concrete barrier employee headbutted the steering wheel getting a cut on forehead

2013 · 1 incident

May 27, 2013 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Black Hills Bentonite LLC · Over-exertion in lifting objects

EE lifted a cutting edge to install on a 627G scraper and twisted lower back. He felt pain then and for the next few days before going to a Chiropractor on 06/03/2013 who told him bone spurs prevented proper alignment of the back. He is going to another doctor today, 06/10/2013 for further diagnostics. He is currently off work.

2012 · 1 incident

February 8, 2012 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Black Hills Bentonite LLC · Struck by flying object

EE was cutting metal with an abrasive saw when a piece of metal passed by his face shield and glasses and embedded in his eye. He thought it might extract itself but he eventually went into emergency room to have it removed the next day. It was a mild embedding and was quickly extracted by the doctor. There will be no lost time from this accident.

2011 · 4 incidents

December 28, 2011 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Black Hills Bentonite LLC · Struck against a moving object

The employee was involved in push-pull scraper operation. He was in 2nd scraper and hooked to 1st scraper with the bale. The 1st scraper moved forward causing the 2nd scraper to unhook which caused it to drop down hard, causing a trauma of compression to the center of lower back.

November 22, 2011 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Black Hills Bentonite LLC · Struck against a moving object

pressure trauma lead to sprained lower back and neck

January 27, 2011 WY · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Black Hills Bentonite LLC · Struck against a moving object

At 4:45 a.m. the driver entered loader put on seat belt and proceeded to load his trailer. He noticed that he was close to the embankment. That's when the edge gave way and the loader slid down the edge and laid over on it's left side. The driver was bounced around in the cab but needed no medical treatment at that time. Later EE went to the Doctor and was checked over.

January 18, 2011 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Black Hills Bentonite LLC · Over-exertion (Not Elsewhere Classified)

EE was barring track onto dozer, felt discomfort in lower stomach. He thought it was pulled muscle and waited a few days to see if it got better - it did not. He went to doctor on 02/27/2011 to confirm it was a hernia which will require surgery. No lost time as yet.

2009 · 2 incidents

August 11, 2009 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Black Hills Bentonite LLC · Struck by... (Not Elsewhere Classified)

EE was cutting hinge off right loader door. He was cleaning weld off with grinder when it kicked back and deeply cut left arm several inches above the wrist. He went to emergency room to have it cleaned and stitched up.

February 10, 2009 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Black Hills Bentonite LLC · Struck against a moving object

EE ran over a large rock while operating a scraper which caused him to pull groin muscle in right leg. He expects to return to work on 02/23/3009.

2007 · 1 incident

June 14, 2007 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Black Hills Bentonite LLC · Struck against a moving object

Operating scraper over rough terrain and strained lower back.

2006 · 3 incidents

September 29, 2006 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Black Hills Bentonite LLC · Struck against a moving object

EE hit a bump while running scraper and felt pain in upper back near his shoulder. There was a stinging sensation when he would look to his right.

August 31, 2006 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Black Hills Bentonite LLC · Struck against a moving object

Driving down road at speed during plowing operations, hit a bump, causing his face to strike steering wheel. He sustained bruises - missed 2 days work.

February 28, 2006 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Black Hills Bentonite LLC · Fall from machine

While stepping down out of trailer van, the wind caught van door and slammed it around against employee, knocking him to the ground. He sustained trauma to the right knee and leg by way of bruising and abrasions. He went to emergency room at hospital and had x-rays, which do not reveal any fracturing. Leg was wrapped in a soft-brace, therapy and several days lost time.

2005 · 2 incidents

November 15, 2005 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer STRIKING OR BUMPING
Black Hills Bentonite LLC · Struck against stationary object

Employee was under rear push block of scraper when he attempted to stand up without first clearing it. He hit his lower back on the block, receiving some trauma.

August 16, 2005 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Black Hills Bentonite LLC · Fall from machine

Employee slipped off step while in process of starting scraper engine and herniated a disk in lower back when landing.

2004 · 1 incident

August 19, 2004 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Black Hills Bentonite LLC · Struck against a moving object

Ee drove Cat 627F scraper down hill into pit, as left tire dropped into pit, the operator was slammed against left side of cab, bruising his side and kidney area. He went to doctor the following afternoon due to some blood in his urine. He was instructed to take 5 days off to ensure that he would be ok.

2003 · 2 incidents

October 22, 2003 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Black Hills Bentonite LLC · Caught in, under or between a moving and a stationary object

EE WAS HELPING MECHANIC MOVE AN ENGINE BLOCK FROM ONE TRUCK TO ANOTHER WHEN HE PINCHED THE TIP OF HIS RIGHT PINKY FINGER BETWEEN THE TRUCK BED AND ENGINE BLOCK, CAUSING IT TO BE SEVERED ABOUT HALF WAY THROUGH THE FINGER NAIL. HE WAS TAKEN TO THE EMERGENCY ROOM TO HAVE IT SEWN UP.

January 30, 2003 WY · Metal/Non-Metal truck driver POWERED HAULAGE
Black Hills Bentonite LLC · Struck against a moving object

THE DRIVER WAS GOING DOWN THE HILL ON HAUL ROAD, THE TRUCK BEGAN TO GAIN SPEED. THE BRAKES WERE APPLIED ALONG W/ENGINE BRAKE. THE TRUCK WASN'T SLOWING DOWN FOR THE CORNER AT BOTTOM OF HILL. TH E AIR PRESSURE WAS LOW & THE DRIVER ENTERED THE CORNER TOO FAST. TRUCK LAID OVER ON LEFT SIDE. DRIVER WAS PINNED BETWEEN SEAT & DOOR, RECEIVED CUT ON LEFT CALF & HEAD.

2001 · 1 incident

December 18, 2001 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Black Hills Bentonite LLC · Over-exertion (Not Elsewhere Classified)

WHILE LAYING ON A CREEPER UNDER A MACHINE, EE REACHED ACROSS TO PICK UP A WRENCH. THE TWISTING MOTION CAUSED HIS BACK TO GO OUT AND IN JAN HE HAD BACK SURGERY TO REPAIR THE DAMAGE. HE HAS HAD PREVIOUS BACK TROUBLE AND SURGERY IN YEARS PAST THE SAFETY OFFICE RECEIVED THE INJURY REPORT ON JAN 18 2002.