Mining Incidents

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Every injury and fatality MSHA has on file. Filter by state, year, sector, classification, experience, or any keyword from the investigator's narrative.

Total incidents
273,095
Of which fatal
1,202
Years on record
2000–2026
Classifications
20
Filters 2 active
Time period
Experience at time of incident

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The record

59 matching records

Showing 50 of 59
May 14, 2026 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck against a moving object

pushing material with a rubber tire dozer was backing up and ran over a rock causing machine to bounce and cause back strain.

November 20, 2025 CO · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker MACHINERY
Climax Molybdenum Company · Struck by falling object

Replacing return roller on locked out conveyor belt system when jack failed and belt pinned hand against roller. No broken bones, pinched muscles and loss of sensation to hand.

June 4, 2025 CO · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management MACHINERY
Climax Molybdenum Company · Caught in, under or between running or meshing objects

Employee was checking froth quality at cleaner cell when finger became pinched between froth paddle and cell weir.

October 23, 2024 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck against a moving object

Multiple oversized boulders were loaded onto haul truck HT107, creating a rough load event. This sudden impact resulted in the operator sustaining a back injury severe enough to require a mayday call over the radio. No vehicle damage occurred; however, the operator's injury required immediate medical evaluation.

April 30, 2024 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Struck by flying object

A technician was pulling a final driver cover. As the technican was raising the hoist to remove slack from rigging material, the hoist continued to raise causing the lifting link/bolt to break out of the cover. The lifting rigging struck the employee in the wrist resulting in a laceration and contustion.

April 26, 2024 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck against a moving object

Haul truck operator was being loaded by contractor shovel trainer operator. Shovel operator didn't hoist the bucket high enough and contacted the dove tail of the haul truck.

August 14, 2023 CO · Metal/Non-Metal miner, nec MACHINERY
Climax Molybdenum Company · Struck by flying object

The employee was struck in the nose with a 1" spud when the 1" valve handle contacted the sill and opened, which caused the air hose to swing. The contact caused a laceration requiring 4 sutures to close.

March 16, 2023 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck against a moving object

Operator of a Haul Truck was in the process of being loaded by a shovel, operator reported that the dumped load into the back of the truck shook the operator in their seat. Operator reported discomfort and was scheduled for evaluation on 3/20 and treated for a back strain, operator was released with restricted duty. Follow up appointment is scheduled for 3/29/23

February 8, 2023 CO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Climax Molybdenum Company · Struck against a moving object

Lower back strain. operator had quick body movement reaction due to loader arm making contact with haul truck bed and/or the ore material loaded into bed of truck at a faster rate when loader bucket was emptied. did not request medical review until 2-26-2023

May 21, 2022 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Over-exertion (Not Elsewhere Classified)

Grader operator was in the process of backing up and as they turned in the seat to watch behind them, they felt a pain in lower back that shot up their back to their neck. EE reported the pain and was taken offsite for evaluation. No adverse conditions noted.

May 7, 2022 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck against a moving object

Shovel operator scooped up a load of material to place in the bed of a haul truck. The impact of the load into the bed caused the windshield to crack, and jarred the truck driver (wearing seat belt). Driver reported back pain; was taken offsite for evaluation. Doctor took x-rays, nothing of note, provided pain medication and told haul truck driver to take 3 days off for recovery.

April 8, 2022 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

Mill Liner rigging failed leading to Employee Injury

February 14, 2022 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck against a moving object

Haul Truck operator sustained Back injury from material loading into haul truck from shovel. Possible mechanism from when operator quickly turned body position when material hit canopy of haul truck

November 4, 2021 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Climax Molybdenum Company · Over-exertion (Not Elsewhere Classified)

Employee was assisting with a mill liner change and while handling the bolter, EE's left knee locked up causing strain.

September 27, 2021 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck against a moving object

Employees were tramming 30" HDPE pipe at 3 Dam crest raise with excavators when one of the excavators got stuck on a sand pile. The other excavators kept moving and the excavator that was stuck tipped over causing the operator to get contusions on right shoulder and elbow.

September 30, 2020 CO · Metal/Non-Metal outside foreman, leadman MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

Not communicating with work partner on task. No locking out the equipment in use. Coring drill

August 30, 2019 CO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Climax Molybdenum Company · Struck against a moving object

A haul truck operator suffered a rough load resulting in strained cervical spine ligaments. The employee complained of shoulder, neck and head pain.

July 7, 2019 CO · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler MACHINERY
Climax Molybdenum Company · Struck against a moving object

Employee was training another employee on Shovel 2. Trainee over extended the boom under full load, causing the shovel to rock on its tracks and land hard. Employee/Trainer was in the trainer/buddy seat and felt the impact in their neck and lower back. As the night and days went on, pain increased.

May 21, 2019 CO · Metal/Non-Metal electrician, lineman MACHINERY
Climax Molybdenum Company · Struck by flying object

Employee was drilling and cutting a metal panel and rubbed their right eye. Later that night they saw something in the eye and had to go to clinic to get it removed.

November 7, 2018 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Over-exertion in wielding or throwing objects

Mechanic was bent over using a hand held needle scaler to clean the bucket on a loader, when they stood up they noticed there was pain in their back. Mechanic was saying that when they breathed they felt pain in their back.

October 12, 2018 CO · Metal/Non-Metal electrician, lineman MACHINERY
Climax Molybdenum Company · Struck by flying object

An employee was using compressed air to clean bolt holes and got a metal fragment in right eye.

September 7, 2017 CO · Metal/Non-Metal master mechanic, foreman, supervisor MACHINERY
Climax Molybdenum Company · Caught in, under or between running or meshing objects

Crew was setting poles; injured employee put their hand too close to the setting chain. When tension was applied to the winch line, the setting chain rolled onto injured employee's thumb causing the thumb to be fractured. Injured employee was taken to the nearest medical facility where minor surgery was performed.

January 13, 2017 CO · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler MACHINERY
Climax Molybdenum Company · Struck against a moving object

Shovel Operator was digging a hard high wall toe and suffered a lower back strain.

March 23, 2016 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Over-exertion (Not Elsewhere Classified)

On 3/23/16 employee noticed EE's right wrist starting to hurt while changing belly liners, using the thunderbolt to hammer the liners out. The injured employee expressed a desire to keep working. It started feeling better so they let it go. Then on Monday 4/11/16 the wrist started hurting again. Clinic gave employee a splint and placed EE on restricted duty.

January 26, 2016 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck against a moving object

Employee was pushing material to a loader with a dozer. As ee was backing up after making a push, ee was distracted by grab iron and step that had come loose. Dozer backed over uneven ground that caused the back to break over and come down hard. Employee stated that the impact had jarred and injured back.

August 3, 2015 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

While resetting fuse for A/C unit in cab, shovel operator stuck his left hand inside the housing. When the fan came on the operator lost his balance causing his left pinkie to make contact with moving fan. Contact caused 2 lacerations to the finger requiring stitches.

July 27, 2015 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Struck by flying object

Employee was grinding during his afternoon shift. On his way home his eye began to bother him. Employee had a piece of metal embedded in his right cornea. An optometrist was able to remove the object.

August 6, 2013 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Climax Molybdenum Company · Caught in, under or between running or meshing objects

Cleaning curls away from a magnetic drill with right index finger and got finger caught in drill bit.

July 5, 2013 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

Employee was removing lip shroud protector bolts from a 998H Loader. He placed his hand over bolt head in order to keep it from spinning. While using 3/4" impact wrench from above to loosen, the bolt head pushed through into employee's hand and caused a 2" laceration to his left palm just below the thumb. Employee received stitches.

July 2, 2013 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Over-exertion (Not Elsewhere Classified)

Injured person was running a chipping hammer in a drop tower where he reported injuring his left shoulder. He went to the doctor where they diagnosed him with tendonitis. He was prescribed physical therapy, Naprosyn, or over the counter equivalent and restricted duty. Reporting doctor concluded the case a pre existing injury and was concurred upon by workmans compensation.

June 27, 2013 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Caught in, under or between running or meshing objects

The employee was using a hand held grinder to remove a broken nut. He was wearing gloves and his left gloved index finger was caught in the grinder disk. He pulled his hand out of the way and received a laceration from the guard which required stitches.

April 5, 2013 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Over-exertion (Not Elsewhere Classified)

Employee reported that he strained his back while welding.

September 13, 2012 CO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler MACHINERY
Climax Molybdenum Company · Struck against a moving object

While mucking the employee struck the steel set causing him to jolt forward in the cab of the loader. Due to the abrupt stop, the employee struck his face causing a nasal fracture, concussion, and a contusion on his knee.

December 16, 2011 CO · Metal/Non-Metal miner, prospector, nec MACHINERY
Climax Molybdenum Company · Struck by flying object

Employee reported a foreign body in the right eye from grinding and welding.

December 15, 2011 CO · Metal/Non-Metal miner, prospector, nec MACHINERY
Climax Molybdenum Company · Struck by flying object

Employee notified the job on 12/16/11 that he thought he got a foreign object in the eye while grinding the day before.

December 3, 2011 CO · Metal/Non-Metal miner, prospector, nec MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

Employee was grinding pipe supports when he felt pain in the right eye.

November 10, 2011 CO · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor MACHINERY
Climax Molybdenum Company · Contact with hot objects or substances

Employee was electrofusing a fitting onto a 2" piece of HDPE pipe. Employee removed his gloves in anticipation of completing weld and shutting down the welding machine. Employee abruptly turned away from coupling when the hot molten around the coupling exploded out from the fusing site. Employee was approx 2' away from area when molten landed on employee.

October 18, 2010 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Struck by flying object

Mechanic was grinding and cleaning a weld in a float cell tank, at some point during this activity he realized that he had gotten somthing in his eye.

December 2, 2008 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

The employee was using a Die grinder to widen holes in a truck bed liner floor plate. The employee was bringing the tool up out of the hole when the grinder slid across the liner plate and hit his left knee causing a small puncture wound. He was treated and initially returned to full duty. At the present time the employee is under observation of a physician for infection.

October 3, 2008 CO · Metal/Non-Metal carpenter MACHINERY
Climax Molybdenum Company · Struck against stationary object

Employee was smoothing cut edges on a 24" diameter steel plate he had clamped in a vice. The vice was not tightened sufficiently and the plate started moving. Employee let loose of the grinder with his left hand to catch the moving plate - while doing this his wrist contacted the grinding wheel and was cut.

September 12, 2008 CO · Metal/Non-Metal carpenter MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

Employee was cutting with a Skil saw when it kicked back and cut the left index fingertip.

August 11, 2008 CO · Metal/Non-Metal mucking machine operator MACHINERY
Climax Molybdenum Company · Struck against stationary object

While driving the mucker to the ore pass the employee hit the rib. The mucker stopped suddenly forcing him to lean forward in his seat. He hit his head on a mounting bracket at the top of the door causing a contusion on top of his head.

May 17, 2008 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

While starting a leach clarifier,EE went under the clarifier to open a valve,then climbed over the bracing bar to get to other side.He put his moly covered boot on the bar causing his foot to slip and scrape the bracing bar.There was a sharp edge on the bar that caused a laceration on his shin.received 4 stitches,no restrictions.

March 22, 2008 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Climax Molybdenum Company · Absorption of radiations, caustics, toxic and noxious substances

When checking the flow on the Nokes chemical, it needed ajustment. While ajusting the flow on the #3 reagent, a drop sprayed out and splashed under the employees goggles and went into his eye.

December 27, 2007 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Caught in, under or between a moving and a stationary object

There were 2 employees working together to lower an 8 inch X 20 Foot pipe with a boom mucker. The injured employee was guiding the pipe as they were lowering it to the ground. The IE had his left hand on the pipe and the boom truck lowered the pipe at a rate faster than anticipated and it pinched his finger between the pipe and the clevis.

October 16, 2007 CO · Metal/Non-Metal driller operator MACHINERY
Climax Molybdenum Company · Struck by falling object

Employee was tightening the "spragues" on the drill and a block fell from the drill column bar approx. 14 feet and struck employee in the left arm.

July 25, 2007 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Climax Molybdenum Company · Contact with hot objects or substances

Cutting car body for PH 2100 shovel for scrap. Torched grease line which burst. Minor facial burns. Result of not inspecting lines to be purged & not using full face protection.

October 20, 2006 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

While changing the cutting edge of the snow plow blade. Water with debris dripped into his ear.

October 14, 2006 CO · Metal/Non-Metal ledgeman/hand, quarry man MACHINERY
Climax Molybdenum Company · Absorption of radiations, caustics, toxic and noxious substances

In the process of clearing a plugged concrete line that was under pressure, the plug released with material striking the employee's face.

July 7, 2006 CO · Metal/Non-Metal raise miner MACHINERY
Climax Molybdenum Company · Struck by... (Not Elsewhere Classified)

Grinding welds, grinder kicked off a cross member striking left arm causing a small laceration requiring sutures to close.

Showing 50 of 59