Mining Incidents

Copper Cliff Mine: 1 reportable incident Metal/Non-Metal

Alta Gold Company · Surface
Adams County, ID  ·  Abandoned
MSHA Mine ID: 1000458

MSHA record for Copper Cliff Mine (mine ID 1000458). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
1
Years on record
1989
Latest incident
Oct 1989
Ownership history
  1. Silver King Mines Inc 1950 to 1989
  2. Alta Gold Company 1989 to present
Source: MSHA controller and operator history, updated weekly.

Copper Cliff Mine sits in Adams County, Idaho, where the Census mining category is 1.5% 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.
Adams County, Idaho · Population 4,599
1.5%
Mining share of county employment
$59,286
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
No fatalities recorded at this mine.

Reportable incidents

1 on file

1989 · 1 incident

October 22, 1989 ID · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Alta Gold Company · Flash burns (welding)

HE WAS HELPING WELDER WHEN A WELDING FLASH BURNED HIS EYES.