Mining Incidents

Revenue Mine Metal/Non-Metal

Thorin Resources · Underground
Controlled by Clem Borkowski
Ouray, Ouray County, CO  ·  NonProducing
MSHA Mine ID: 0503528

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Fatalities
2
Total incidents
73
Years on record
2012–2021
Latest incident
Nov 2021
Compliance record
MSHA citations since 2011
372
citations
169
significant & substantial
$2,178,224
proposed penalties
$403,747
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 3,950 2 0 506.3
2025 Q3 2,080 0 0 0.0
2025 Q2 960 2 0 2083.3
2025 Q1 40 5 0 125000.0
2024 Q4 6,000 0 0 0.0
2024 Q3 1,275 0 0 0.0
2024 Q2 960 0 0 0.0
2024 Q1 800 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

Fatalities at this mine

2 recorded
November 17, 2013 CO · Metal/Non-Metal utility man, errand boy, service truck operator Fatality · EXPLOSIVES AND BREAKING AGENTS
Star Mine Operations, LLC · Inhalation of radiations, caustics, toxic and noxious substances

Employee went back to check on a post blast and became overcome by Carbon Monoxide from powder smoke. Carbon Monoxide

Reportable incidents

71 on file (excluding fatalities above)

2021 · 4 incidents

November 22, 2021 CO · Metal/Non-Metal miner, prospector, nec HANDTOOLS (NONPOWERED)
Ouray Silver Mines Inc. · Struck by... (Not Elsewhere Classified)

While cleaning out lockers the employee decided to build a tool holder out of a piece of rubber hose. While cutting the hose the knife slipped causing a laceration to the left thumb. 7 stitches were given to treat the back side of the thumb.

October 24, 2021 CO · Metal/Non-Metal miner, nec HANDLING OF MATERIALS
Ouray Silver Mines Inc. · Over-exertion (Not Elsewhere Classified)

Miner was removing a slusher block from an eye pin at the face and felt something "give out" in left shoulder. Miner was diagnosed with a muscle strain of the left rotator cuff at the shoulder, and a sprain of the left AC joint. Cleared to return to work with restricted duty (no lifting above shoulder height with left arm). Recommended Physical Therapy evaluation and treatment.

October 13, 2021 CO · Metal/Non-Metal warehouse, supply handler HANDLING OF MATERIALS
Ouray Silver Mines Inc. · Over-exertion in lifting objects

While unloading 5 gal. water jugs from a flatbed truck EE felt pain in EE's right shoulder while lowering jugs. On 10/15/21 EE saw a physician, was diagnosed with right shoulder/elbow strain. Restricted duty (5 lbs. lifting max) and Physical Therapy Evaluation were prescribed. On 10/22/21 the physician increased wt. limit to 15 lbs., and recommended Physical Therapy Treatment.

June 8, 2021 CO · Metal/Non-Metal miner, nec MACHINERY
Ouray Silver Mines Inc. · Struck by... (Not Elsewhere Classified)

Miner was standing adjacent to the slusher lane, and was struck by the tail cable of the slusher

2020 · 8 incidents

December 29, 2020 CO · Metal/Non-Metal steel worker, iron metal worker, iron worker POWERED HAULAGE
Ouray Silver Mines Inc. · Caught in, under or between a moving and a stationary object

Employee was working out of a 45' man lift. EE was bolting up purlins. EE had to move the basket around the column to complete bolt up. When EE moved the basket it lurched to EE's left catching EE's finger between the column and the basket.

December 15, 2020 CO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler POWERED HAULAGE
Ouray Silver Mines Inc. · Struck by flying object

While tramming an electric locomotive, out of the mine, dust, dirt or another unknown debris entered the miner's eye. The event resulted in an abrasion to the eye and antibiotics were administered to the eye.

December 11, 2020 CO · Metal/Non-Metal miner, nec MACHINERY
Ouray Silver Mines Inc. · Struck by... (Not Elsewhere Classified)

While running a stoper in the Alimak raise, the drill EE was operating hung up in the hole and spun, resulting in a smashed right middle finger.

November 17, 2020 CO · Metal/Non-Metal miner, nec FALL OF ROOF OR BACK
Ouray Silver Mines Inc. · Struck by falling object

While scaling rock in a raise from a work platform. A rock roughly 5" to 9" fell and entered the work deck striking employee on the right foot. Raise is on a 72 degree angle and the rock fell from the area they were scaling.

October 22, 2020 CO · Metal/Non-Metal master mechanic, foreman, supervisor POWERED HAULAGE
Ouray Silver Mines Inc. · Struck by powered moving object

An OSMI foreman was driving an electric locomotive into the mine and upon approaching a run around, the foreman reached down for a bottle of water. At the moment they sat up, the foreman fell from the locomotive and was crushed between the locomotive and rib. The foreman suffered broken ribs and a fractured pelvis.

October 21, 2020 CO · Metal/Non-Metal laborer, bull gang, faceman, parts runner, roustabout, roof trimmer/scaler SLIP OR FALL OF PERSON
Ouray Silver Mines Inc. · Fall to the walkway or working surface

EE was walking on a muck pile when EE slipped and fell to the same level. The fall resulted in an over extension of EE's arm.

September 28, 2020 CO · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor HANDLING OF MATERIALS
Ouray Silver Mines Inc. · Caught in, under or between a moving and a stationary object

While removing a compressed gas cylinder from a storage rack, the cylinder slipped and smashed an employee's right pinky finger between the cylinder cap and cylinder rack. The event resulted in three stitches to the finger nail bed.

July 1, 2020 CO · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management FALL OF ROOF OR BACK
Ouray Silver Mines Inc. · Struck by falling object

EE was standing at the bottom of an unoccupied manway preparing to survey the area. As EE looked up, EE was unable to shine the light upward far enough to see the area. EE removed hard hat and was holding it in EE's hand while shining the light upward when a rock struck EE on the side of the head.

2017 · 2 incidents

September 11, 2017 CO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler SLIP OR FALL OF PERSON
Ouray Silver Mines Inc. · Fall down raise, shaft or manway

EE was blow piping down the ore chute. EE was wearing fall protection at this time. EE finished blow piping, sat it down on the walk way, took fall harness off and took a step forward. A metal wire poked EE in the face, EE was startled jumped back. EE fell down the ore chute, 30 feet below and landed in the 7 ton young buggy.

February 22, 2017 CO · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor MACHINERY
Ouray Silver Mines Inc. · Fall from machine

An employee was operating a Broderson IC-80 crane attempting to lift part of a crusher assembly when the crane tipped over landing on top of a haul truck box. The operator then unbuckled the seat belt to exit the crane and injured right shoulder.

2016 · 1 incident

October 17, 2016 CO · Metal/Non-Metal miner, nec HANDLING OF MATERIALS
Ouray Silver Mines Inc. · Struck by falling object

Employee and partner were installing pipe for utilities when the partner slipped and dropped the pipe which caused the employee to drop their end of the pipe, dropping it on their foot.

2015 · 16 incidents

September 7, 2015 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Ouray Silver Mines Inc. · Over-exertion (Not Elsewhere Classified)

While moving cabinet down stairs, one miner missed bottom step injured miner adjusted footing missed step and fractured ankle.

July 11, 2015 CO · Metal/Non-Metal miner, nec HANDLING OF MATERIALS
Ouray Silver Mines Inc. · Struck by falling object

The Miner tried to avoid water coming out of the back. His ROPS struck the rib kicking a rock loose that struck his right forearm.

May 28, 2015 CO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler HANDTOOLS (NONPOWERED)
Ouray Silver Mines Inc. · Struck by... (Not Elsewhere Classified)

Miner was taking an air spud off of a water pump with a large pipe wrench. He thought the spud was tight but it was loose. When he pried down on it forcefully his hand struck the metal table breaking his hand.

April 21, 2015 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Ouray Silver Mines Inc. · Fall onto or against objects

The miner was attempting to board an electric Loci that he had parked under an 8" air line. When he stepped on the wet step his foot slipped causing him to hit the right side of his head against the air line. He did not report this till the end of shift. He declined first aid or medical attention.

February 8, 2015 CO · Metal/Non-Metal miner, nec STEPPING OR KNEELING ON OBJECT
Ouray Silver Mines Inc. · Struck against stationary object

Employee was working at the face, when he turned and stepped on a rock, rolling his left ankle. Employee was seen at ER and released to light duty. Further evaluation revealed the ankle was broken.

January 19, 2015 CO · Metal/Non-Metal supply man, supply worker, nipper POWERED HAULAGE
Ouray Silver Mines Inc. · Struck by... (Not Elsewhere Classified)

Employee was riding into the mine on a rail bike when he encountered an 8-ton battery locomotive. He exited the bike and was trying to get it off the track when the locomotive struck the bike, propelling a piece of the bike into his leg, bruising it.

January 8, 2015 CO · Metal/Non-Metal hand loader, hand trammer POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Miner breathed unknown fumes - possibly from battery overheating - reported symptoms the next day. Respiratory issues.

January 8, 2015 CO · Metal/Non-Metal hand loader, hand trammer POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Miner breathed unknown fumes - possibly from battery overheating - reported symptoms the next day. Respiratory issues.

January 8, 2015 CO · Metal/Non-Metal laborer, bull gang, faceman, parts runner, roustabout, roof trimmer/scaler POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Miner breathed unknown fumes - possibly from battery overheating - reported symptoms the next day. Respiratory issues.

January 8, 2015 CO · Metal/Non-Metal laborer, bull gang, faceman, parts runner, roustabout, roof trimmer/scaler POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Miner breathed unknown fumes - possibly from battery overheating - reported symptoms the next day. Respiratory issues.

January 8, 2015 CO · Metal/Non-Metal hand loader, hand trammer POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Miner breathed unknown fumes - possibly from battery overheating - reported symptoms the next day. Respiratory issues.

January 8, 2015 CO · Metal/Non-Metal supply man, supply worker, nipper POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Miner breathed unknown fumes - possibly from battery overheating - reported symptoms the next day. Respiratory issues.

January 8, 2015 CO · Metal/Non-Metal laborer, bull gang, faceman, parts runner, roustabout, roof trimmer/scaler POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Miner breathed unknown fumes - possibly from battery overheating - reported symptoms the next day. Respiratory issues.

January 8, 2015 CO · Metal/Non-Metal laborer, bull gang, faceman, parts runner, roustabout, roof trimmer/scaler POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Miner breathed unknown fumes - possibly from battery overheating - reported symptoms the next day. Respiratory issues.

January 8, 2015 CO · Metal/Non-Metal laborer, bull gang, faceman, parts runner, roustabout, roof trimmer/scaler POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Miner breathed unknown fumes - possibly from battery overheating - reported symptoms the next day. Respiratory issues.

January 6, 2015 CO · Metal/Non-Metal laborer, bull gang, faceman, parts runner, roustabout, roof trimmer/scaler OTHER
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Employee believes he inhaled an unknown substance - possibly drill oil mist. Developed respiratory issues.

2014 · 17 incidents

December 19, 2014 CO · Metal/Non-Metal ball/rod/pebble/hand/limestone/dry mill operator, roller operator HANDLING OF MATERIALS
Ouray Silver Mines Inc. · Over-exertion in lifting objects

Employee was shoveling out of ball mill feed and heard felt a strain in his shoulder. Employee was evaluated at medical center and returned to duty next shift with restrictions. No lost time.

November 25, 2014 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POISONING (TOXIC MATERIALS)
Ouray Silver Mines Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Employee was working near exhaust of boiler. After work had symptoms of CO poisoning, so went to hospital.

November 9, 2014 CO · Metal/Non-Metal supply man, supply worker, nipper POWERED HAULAGE
Ouray Silver Mines Inc. · Struck against stationary object

Employee was riding on rear of pulled train cars. Lifted head and back of mine struck his hardhat, knocking him off onto rail. Taken to hospital for evaluation - did not see any injuries - released. Possible minor concussion.

September 16, 2014 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER
Star Mine Operations, LLC · Unclassified, insufficient data

Employee says foot injured several days ago - does not know what happened - was shoveling - noticed foot sore at home. Did not report immediately. Company is contesting this being a work-related incident

August 29, 2014 CO · Metal/Non-Metal miner, nec FALL OF ROOF OR BACK
Star Mine Operations, LLC · Struck by falling object

Vibration from blasting in an adjacent area caused rock to fall from rib, an approximately 20-30 lb rock struck employee in the back of the neck. Evaluation revealed only deep bruising. Later evaluation revealed fractured elbow

July 3, 2014 CO · Metal/Non-Metal supply man, supply worker, nipper MACHINERY
Star Mine Operations, LLC · Absorption of radiations, caustics, toxic and noxious substances

EE was shotcreting mine back - shotcrete hose plugged then became unplugged and sprayed shotcrete up into face - went under safety glasses. Medical care involved flushing eyes and prescription - no lost time.

July 1, 2014 CO · Metal/Non-Metal supply man, supply worker, nipper HANDLING OF MATERIALS
Star Mine Operations, LLC · Over-exertion in lifting objects

Employee stated that he had hurt back previous week - thinks handling 4 x 8 panels of wire mesh. Company is contesting the incident as not work related.

June 16, 2014 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
Star Mine Operations, LLC · Struck by... (Not Elsewhere Classified)

Employee noticed something in his eye after returning home from shift. Does not know when exactly it occurred or what he was doing at the time. Reported two days after it happened and then had a speck removed by doctor four days after incident. Doctor prescribed antibiotic ointment.

June 3, 2014 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Star Mine Operations, LLC · Over-exertion in lifting objects

Two employees were removing a pump from a sump. When removing the pump, one employee felt a pull in his groin and experienced pain.

June 3, 2014 CO · Metal/Non-Metal supply man, supply worker, nipper HANDLING OF MATERIALS
Star Mine Operations, LLC · Struck by... (Not Elsewhere Classified)

Moving 12 x 12 timber from one mine car to another, material sprayed into the eyes of the employee. The employee was not wearing eye protection and received the injury.

May 28, 2014 CO · Metal/Non-Metal safety director SLIP OR FALL OF PERSON
Star Mine Operations, LLC · Over-exertion (Not Elsewhere Classified)

Walking from portal to mine office. Twisted knee while crossing mine track. Heard pop. Went to dr. for evaluation and prescription issued.

May 22, 2014 CO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler MACHINERY
Star Mine Operations, LLC · Flash burns (welding)

Mill operator received flash burns to eyes from welding operations. Believed to be from reflectance

March 28, 2014 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Star Mine Operations, LLC · Fall to the walkway or working surface

Walking back to loader when slipped on icy ground and landed on back.

January 22, 2014 CO · Metal/Non-Metal safety director ALL OTHER OCCUPATIONAL ILLNESSES
Star Mine Operations, LLC · (Not Elsewhere Classified)

1/22/14 received medical documentation stating employee is unable to work due to mental health.

January 8, 2014 CO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler MACHINERY
Star Mine Operations, LLC · Struck by... (Not Elsewhere Classified)

The injured miner was drilling into the back with a jackleg for rock bolting. While drilling, the steel shanked and forced the miner into the rib. The jackleg then hit the miner in the right knee causing the injury. The miner received medical attention.

2013 · 18 incidents

December 26, 2013 CO · Metal/Non-Metal ledgeman/hand, quarry man MACHINERY
Star Mine Operations, LLC · Struck by... (Not Elsewhere Classified)

EE was welding and he flipped his hood up to check the weld when something airborne got into his eye.

December 8, 2013 CO · Metal/Non-Metal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler HANDLING OF MATERIALS
Star Mine Operations, LLC · Over-exertion in lifting objects

Improper lifting of pipe, which employee believed caused hernia. Employee declined to provide information to the company.

November 17, 2013 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech ALL OTHER OCCUPATIONAL ILLNESSES
Star Mine Operations, LLC · (Not Elsewhere Classified)

11/18/13 Received medical documentation stating Employee is unable to Return to Work due to Metal Health. Please see attached document.

November 17, 2013 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech ALL OTHER OCCUPATIONAL ILLNESSES
Star Mine Operations, LLC · (Not Elsewhere Classified)

11/18/13 Received medical documentation stating employee is unable to Return to Work due to metal Health. Please see attached document.

November 17, 2013 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech EXPLOSIVES AND BREAKING AGENTS
Star Mine Operations, LLC · Inhalation of radiations, caustics, toxic and noxious substances

Employee went back to help rescue a down nipper. Carbon Monoxide

November 17, 2013 CO · Metal/Non-Metal ledgeman/hand, quarry man ALL OTHER OCCUPATIONAL ILLNESSES
Star Mine Operations, LLC · (Not Elsewhere Classified)

11/27/13 Received medical documentation stating employee is unable to return to work due to mental health.

November 7, 2013 CO · Metal/Non-Metal longwall operator, chock operator, shear operator, plow operator HANDTOOLS (NONPOWERED)
Star Mine Operations, LLC · Struck by... (Not Elsewhere Classified)

Employee was cutting on some conveyor belting, Utility knife slipped and cut the his left hand thru his glove.

September 21, 2013 CO · Metal/Non-Metal ledgeman/hand, quarry man FALL OF ROOF OR BACK
Star Mine Operations, LLC · Struck by falling object

Incident found in routine audit - Employee was holding the alimak rail so it could be bolted together. A rock fell out of the back striking him behind his leg.

July 31, 2013 CO · Metal/Non-Metal ledgeman/hand, quarry man MACHINERY
Star Mine Operations, LLC · Caught in, under or between a moving and a stationary object

Incident found in routine audit -While the employee was mucking on the left rib, the bucket caught causing it to tip over and pinning employees wrist against the rib.

June 25, 2013 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Star Mine Operations, LLC · Struck by falling object

Hammering overhead, when some debris fell into the left eye.

June 11, 2013 CO · Metal/Non-Metal supply man, nipper HANDLING OF MATERIALS
Star Mine Operations, LLC · Caught in, under or between a moving and a stationary object

A flat car was being hooked up when the employees right hand got pinched between the motor and flat car.

March 13, 2013 CO · Metal/Non-Metal ledgeman/hand, quarry man POWERED HAULAGE
Star Mine Operations, LLC · Caught in, under or between (Not Elsewhere Classified)

Two men were being lifted up in an enclosed work platform with a telehandler to perform task on structural steel frame. The work platform was passing by frame work and injured worker had right arm out.

2012 · 5 incidents

November 6, 2012 CO · Metal/Non-Metal continuous miner helper, coal mole helper, bridgeman HANDTOOLS (NONPOWERED)
Star Mine Operations, LLC · Over-exertion in wielding or throwing objects

The employee was swinging a slug hammer to drive spikes in the rail and felt a pop in the right elbow.

October 28, 2012 CO · Metal/Non-Metal miner, prospector, nec SLIP OR FALL OF PERSON
Star Mine Operations, LLC · Fall to the walkway or working surface

Incident found in routine audit - 1/16/2013 Employer was notified of incident that occurred on 10/28/2012. No medical treatment was given on 10/28/2013 but on 12/1/2012. Employee caught his boot on a loop if blasting cap wire. He fell forward with his full weight landing on his right arm and knee.

October 1, 2012 CO · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
Star Mine Operations, LLC · Struck by... (Not Elsewhere Classified)

Jack leg operator using G.D.-83 drill to pin a heel plate on the welded wire, While the miner helper placed the nut on bolt. After applying the nut the operator lost anchor point on the drill and the drill steel came around and struck the miner helper in the ear & neck.

August 9, 2012 CO · Metal/Non-Metal ledgeman/hand, quarry man FALL OF ROOF OR BACK
Star Mine Operations, LLC · Struck by falling object

While installing resin cartridges in a bore hole, a slab of rock came loose and struck the employee in the nose. The miners were working from a supported area trying to tie the mats and bolts into the face and back.