Mining Incidents

Lone Tree Mill Metal/Non-Metal

Alta Gold Company · Facility
White Pine County, NV  ·  Abandoned
MSHA Mine ID: 2601990

MSHA record for Lone Tree Mill (mine ID 2601990). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
47
Years on record
1988–1990
Latest incident
Jan 1990
No fatalities recorded at this mine.

Reportable incidents

47 on file

1990 · 2 incidents

January 26, 1990 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Alta Gold Company · Fall from scaffolds, walkways, platforms

EMPL LEANING OVER SAFETY CHAIN TO CHECK ON COP TANK.EMPL HAD MUD ON BOOTS AND FLOCULANT HAD BEEN SPILLED ON FLOOR.EMPL WAS CLEANING IT UP.AS HE LEANED OVER CHAIN,FEET SLIPPED OUT FROM UNDERNEA TH HIM ALLOWING 6'FALL FROM WALKWAY TO FLOOR BEL

January 23, 1990 NV · Metal/Non-Metal grader operator, roadgrader operator HANDLING OF MATERIALS
Alta Gold Company · Struck by rolling or sliding object

WAS CLEANING UP BELOW THE CRUSHER A ROCK PICK WAS MOVED INTO POSITION AT THE CRUSHER DISLODGING A LARGE ROCK FROM THE BERM. THE ROCK ROLLED DOWN THE EMBANKMENT STRIKING THE EE LEFT FOOT.

1989 · 24 incidents

December 10, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Alta Gold Company · Struck by flying object

EMPLOYEE WAS CLEANING UP AROUND THE MILL CRUSHER WHILE DOING THIS A ROCK FLEW OVER THE PROTECTOR ON THE CRUSHER HITTING HER ON THE RIGHT CHEEK UNDER HER SAFETY GLASSES.

November 4, 1989 NV · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Alta Gold Company · Struck against stationary object

THE EMPLOYEE AND A CO-WORKER WERE REMOVING THE EXCENTRIC BUSHING FROM A SIMMONS CRUSHER. THE EMPLOYEE WAS HOLDING A DRIFT PIN WHILE THE CO WORKER STRUCK THE PIN WITH HAMMER. AFTER HAMMER BLO W PIN SLIPPED CAUSING THE EMPLOYEES HAND TO STRIKE THE EDGE OF THE STEP PLATE. LACERATING HIS FINGER.

October 18, 1989 NV · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Alta Gold Company · Fall from ladders

EMPLOYEE WAS CLIMBING DOWN LADDER OF A HAUL TRUCK HE STEPPED ON A BOX HIS FOOT SLIPPED OFF THE BOX CAUSING HIM TO FALL THE EMPLOYEE HAD USED THE BOX TO CLIMB UP THE LADDER

October 16, 1989 NV · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Alta Gold Company · Over-exertion (Not Elsewhere Classified)

THE EMPL WAS PULLING RE-BAR TO THE AREA WHERE IT WAS BEING TIED IN HE WAS WALKING ACROSS A DOUBLE MAT OF TIED RE-BAR HE STUBLED TWISTING HIS KNEE

September 10, 1989 NV · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Alta Gold Company · Caught in, under or between a moving and a stationary object

ONE LEG OF THE CHUTE STAND BECAME CAUGHT BETWEEN DUST COVER AND CONE FRAME. THE CHUTE STAND WAS HANGING FROM A CRANE CABLE. THE EMPLOYEE WAS PRYING THE LEG LOOSE WHEN IT CAME LOOSE IT SWUNG AR OUND AND HIT THE EMPLOYEE'S HAND. HE WAS HANGING ON THE SIDE OF THE CONE CRUSHEWR BECAUSE THERE IS NO WALKWAY. IF HE WOULD HAVE LET GO OF THE CRUSHER HE WOULD HAVE FELL APPROX. 15 FEET.

September 6, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Alta Gold Company · Caught in, under or between a moving and a stationary object

EMPLOYEE WAS HELPING TO REPLUMB CYCLONE FEEDER. WHILE HOLDING THE BLOCK ON THE CRANE SUPPORTING THE FEEDLINE, ANOTHER EMPLOYEE CUT THE BRACE LOOSE FROMT HE DECK. WHEN THE LINE CAME LOOSE IT CAUGHT HIS LEFT HAND BETWEEN THE BLOCK AND THE PIPE.

August 8, 1989 NV · Metal/Non-Metal safety director OTHER
Alta Gold Company · (Not Elsewhere Classified)

EMPLOYEE CAME TO WORK EARLY TO CATCH UP ON PAPERWORK.HE STARTED EXPERIENCING CHEST PAIN,NUMBNESS IN HIS LEFT ARM AND NAUSEA.EMPLOYEE WAS TAKEN TO THE HOSPITAL.

June 5, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Alta Gold Company · Over-exertion in lifting objects

THE EMPLOYEE WAS PREAPRING TO MOVE AN EMPTY HCI BARREL FROM THE ACID WASH AREA TO THE RINSE AREA.WHILE CLEANING THE EQUIPMENT WATER HAD ACCUMULATED IN THE HCI BARREL.THE EMPLOYEE LIFTED THE BA RREL ACROSS A STAIRWAY AND SLID IT TO THE RINSE AREA.WHILE BENDING OVER TO WASH OUT THE BARREL HE NOTICED DISCOMFORT IN HIS BACK AND LEFT THIGH.

May 29, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Alta Gold Company · Struck against stationary object

I.NAME WAS ENGAGED IN MIXING CYANIDE SOLUTION, RINSING THE DRUMS. THE HEAD HAD BEEN REMOVED FROM THE DRUM USING A DRUM DEHEADING TOOL, WHICH LEAVES A SHARP AND SOMETIMES JAGGED EDGE ON THE DRU M. WHILE ROTATING THE DRUM TO MOVE IT, HE SNAGGED HIS THUMB, CUTTING THROUGH THE PROTECTIVE GTLOVE AND LACERATING HIS THUMB. THE CUT WAS CONTAMINTED BY NACN POWDER.

May 23, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Alta Gold Company · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE DEVOLVE A RASH ON BOTH ARMS DURING HIS NORMAL SHIFT OF WORK.

April 10, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Alta Gold Company · Caught in, under or between (Not Elsewhere Classified)

EMPLOYEE WAS OPERATING FORK LIFT LOADING PIPE ONTO SEMI TRAILER. A SECTION OF PIPE WAS LAYED CROOKED, SO EMPLOYEE GOT OFF TO HELP DRIVER STRIGHTEN IT OUT. PIPE ROLLED CATCHING EMPLOYEES LEFT HAND. SMASHING LEFT THUMB.

April 3, 1989 NV · Metal/Non-Metal carpenter HANDLING OF MATERIALS
Alta Gold Company · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS LOADING AND UNLOADING 110 LB CYNANIDE BARRELS WHEN HE FELT HIS LEFT LEG GETTING WEAKER CAUSING HIM TO PUT MORE WEIGHT ON HIS RIGHT LEG.HE FELT A GRINDING IN HIS LEFT HIP.

March 24, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Alta Gold Company · Fall from machine

EMPLOYEE CLIMBED OVER HANDRAIL TO CHECK AND SEE WHAT WAS CLOGGING PAN FEEDER, LOST FOOTING AND SLIPPED AND FELL APPROXIMATELY 12-15 FEET TO CONCRETE SLAB BELOW.

March 24, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Alta Gold Company · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS TRIMMING INSULATION OFF OF AN ELECTRICAL CORD WITH A KNIFE. THE KNIFE SLIPPED, CUTTING THE PALM ON HIS LEFT HAND.

March 17, 1989 NV · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Alta Gold Company · Struck by rolling or sliding object

EMPL WAS UNLOADING PIPE WELDER OFF BACK OFF FLATBED WITH ANOTHER WORKER. HE WAS ON RAMP LIFTING WELDER ONTO RAMPL. HE WAS REETURNING BACK TO GROUND THEN OTHER WORKERS HANDS SLIPPED OFF ROPE & WELDER ROLED DOWN RAMP & HIT EMPLS FOOT.

March 10, 1989 NV · Metal/Non-Metal welder (shop) POWERED HAULAGE
Alta Gold Company · Absorption of radiations, caustics, toxic and noxious substances

EMPL WAS WORKING AT CRUSHERE LIME BLEW OFF ONE OF CONVEYORS INTO EYES.

March 10, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Alta Gold Company · Absorption of radiations, caustics, toxic and noxious substances

EMPL WAS WORKING NEXT TO CONVEYOR BELT CARRYING LIME AT CRUSHER. LIME BLEW OFF CONVEYOR BELT INTO EYES.

March 10, 1989 NV · Metal/Non-Metal welder (shop) POWERED HAULAGE
Alta Gold Company · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE WAS BUILDING STAND FOR CONVEYOR. LIME AND DUST FROM ONE OF THE CONVEYORS BLEW LIME INTO HIS EYES.

March 10, 1989 NV · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
Alta Gold Company · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE WAS WORKING AT CRUSHER. LIME AND DIRT BLEW OFF ONE OF THE CONVEYORS, GETTING INTO EMPLOYEE'S EYES.

February 23, 1989 NV · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Alta Gold Company · Fall to the walkway or working surface

EMPLOYEE WAS PULLING SHEETS OF LINER. THE HAND CLAMPS SLIPPED OFF AND HE FELT SOMETHING TEAR IN HIS LEFT SHOULDER. HE THEN FELL DOWN.

February 8, 1989 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Alta Gold Company · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE WAS PULVERIZING SAMPLES WHEN SHE BROKE OUT IN A RASH ON HER ARMS.

February 8, 1989 NV · Metal/Non-Metal coal sampler MACHINERY
Alta Gold Company · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS PULVERIZING A SAMPLE SHE CLEANED OFF THE PLATE & GOT TOO CLOSE TO THE SPINNING PLATE CUTTIANG HER FINGER

February 7, 1989 NV · Metal/Non-Metal welder (shop) MACHINERY
Alta Gold Company · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS LAYING OUT ROCK HOPPERS FOR WELDING. FELLOW EMPLOYEE STARTED GRINDING METAL, THROWING SPARKS AND METAL CHIPS. A PIECE OF METAL WENT INTO HIS EYE.

January 24, 1989 NV · Metal/Non-Metal coal sampler MACHINERY
Alta Gold Company · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE HAD BEEN PREPARING SAMPLES & OPERATING PULVERIZER FOR THE SHIFT WHEN SHE GOT READY TO GO HOME SHE NOTICED REDNESS ON HER FOREARMS SHE WENT TO THE CLINIC THE NEXT DAY

1988 · 21 incidents

December 31, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Alta Gold Company · Fall from machine

EMPL TIGHTENING BOLT ON BALL MILL LID BOLT BROKE CAUSING WRENCH TO SLIP & HE LOST BALANCE & FELL 15' TO CONCRETE FLOOR BELOW.

December 29, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Alta Gold Company · Over-exertion (Not Elsewhere Classified)

EMPL WAS IN WAREHOUSE LOOKING FOR TIRES & WHILE MOVING TIRES AROUND HE FELT POP IN LEFT KNEE.

December 7, 1988 NV · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Alta Gold Company · Fall from machine

EMPLOYEE WAS WORKING ON THETOP OF THE BALL MILL INSTALLING NUTS AND WASHERS ON LINER BOLTS,WHEN HE SLIPPED AND FELL TO THE FLOOR.

November 17, 1988 NV · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Alta Gold Company · Over-exertion (Not Elsewhere Classified)

EE WAS CARRYING TOOLS FROM WELDING SHOP TO LOAD IN A TRUCK HE SLIPPED ON ICE AND TWISTED HIS LEFT KNEE.

November 12, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Alta Gold Company · Fall from machine

EMPL OYEE WAS CLIMBING DOWN FROM #2 ROLLS AT THE CRUSHER.HE SLIPPED FROM A TIRE AND LANDED ON HIS LEFT LEG AND TWISTED HIS KNEE.

October 24, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Alta Gold Company · Caught in, under or between a moving and a stationary object

EMPL WAS OPERATING PRIMARY CRUSHER WHEN BOULDER CAME OVER TOP OF HOPPER SMASSHING LEFT FINGER & PUSHING ELBOW INTO RAILING.

October 7, 1988 NV · Metal/Non-Metal welder (shop) SLIP OR FALL OF PERSON
Alta Gold Company · Fall to the walkway or working surface

EMPLOYEE WAS CARRYING MATERIAL AND TRIPPED OVER SOME IRON.AS HE FELL THE BACK OF HIS RIGHT HAND WAS CUT.

September 27, 1988 NV · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Alta Gold Company · Struck against a moving object

EMPLOYEE WAS A PASSENGER IN A PICKUP THAT WAS TRANSPORTING EMPLOYEES TO WORK AREA. THE DRIVER WAS GOING UP AN INCLINE WHERE A DITCH HAD BEEN DUG ON THE LEFT SIDE. DRIVER WENT OVER THE BERM INT O THE DITCH.

September 26, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Alta Gold Company · Caught in, under or between a moving and a stationary object

EMPL OYEE WAS TIGHTENING SPRINGS WITH A PIPE WRENCH.HE WAS PULLING DOWN WITH THE WRENCH AND HIT THE BACK OF HIS LEFT MIDDLE FINGER BETWEEN THE METAL AND THE WRENCH.

September 26, 1988 NV · Metal/Non-Metal electrician, lineman SLIP OR FALL OF PERSON
Alta Gold Company · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS PICKING UP RAILROAD TIE TO PUT IN PLACE FOR TRANSFORMER.HE STEPPED UP ON DIRT AND FELT HIS HIP POP,HE FELL AND DROPPED THE TIE.

August 23, 1988 NV · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Alta Gold Company · Struck by flying object

EMPLOYEE WAS LINING THE BALL MILL DUST WAS BLOWING AROUND INSIDE THE MILL,HE RECEIVED DUST IN HIS RIGHT EYE.HE SAYS HE WAS WEARING SAFETY GLASSES.

August 10, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Alta Gold Company · Caught in, under or between a moving and a stationary object

EMPL WAS CLEANING OUR PLVERIZER WITH AIRHOSE. AIR HOSE HAS LONG EXTENSION & IT GOT CAUGHT ON BOLT IN BACK IT PULLED HAND INTO PULVERIZER SMASHING HAND ON OPEN LID.

July 13, 1988 NV · Metal/Non-Metal electrician, lineman HANDTOOLS (NONPOWERED)
Alta Gold Company · Struck by... (Not Elsewhere Classified)

EMPL WAS UNTAPING MOTOR CONNECTION ON 50 HP MOTOR HE WAS CUTTING THROUGH TAPE & UTILITY KNIFE SLIPPED CUTTING LEFT THUMB.

June 7, 1988 NV · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Alta Gold Company · Fall from machine

LINING BALL MILL.

May 27, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Alta Gold Company · Struck by... (Not Elsewhere Classified)

EMPL WAS PULVERIZING SMAPLES IN LAB WHEN SHE RECEIVED DIRT IN EYE. EMPL WAS WEARING SAFETY GLASSES AT TIME.

March 23, 1988 NV · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Alta Gold Company · Fall to lower level, (Not Elsewhere Classified)

EMPL WAS CHAING SWEEP ON BALL MILL. STAND HE WA ON TIPPED OVER & HE FELL. HE SCRAPED NECK & JARRED LOWER BACK.

March 15, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Alta Gold Company · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE WAS TAKING CARBON READINGS OUT OF CIP TANKS.HE WAS USING LEATHER GLOVES RATHER THAN RUBBER.

February 29, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Alta Gold Company · Caught in, under or between (Not Elsewhere Classified)

EMPL WAS CARRYING DOOR LINER TO TOP OF MILL HE PUT LINER ONTO MILL. LINER SLIPPED & IN ATTEMPT TO CATCH IT FINGERS WERE MASHED BETWEEN DOOR LINER & MILL.

February 26, 1988 NV · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor HANDLING OF MATERIALS
Alta Gold Company · Struck against stationary object

EMPL WAS UNLODING TRAILER HE STEPPED BACKWARDS OFF TRAAILER JAMMING RIGHT WRIST ON PIECE OF STEEL PROTUDING FROM TRAILER.

January 20, 1988 NV · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Alta Gold Company · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS WORKING ON CONBEYOR BELTS REMOVING IDLERS. WHEN HE TRIED TO STAND UP HIS KNEE TWISTED.

January 4, 1988 NV · Metal/Non-Metal electrician, lineman HANDLING OF MATERIALS
Alta Gold Company · Struck by falling object

EMPL OYEE WAS ENTERING THE WAREHOUSE WHEN HE OPENED THE DOOR A PICE OF DRILL STEEL TIPPED OVER AND LANDED OIN HIS FOOT.

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The full compliance file on Lone Tree Mill

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.