South Mountain Metal/Non-Metal
Sun Cor Underground Inc
· Surface
Controlled by
Terri L Harguess; Sammy D Harguess
MSHA Mine ID: 0203521
MSHA record for South Mountain (mine ID 0203521). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Ownership history
- Sun Cor Underground Inc 2024 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2025 | 5 |
| 2024 | 7 |
Source: MSHA quarterly employment and production, updated weekly.
South Mountain sits in Cochise County, Arizona, where the Census mining category is 0.7% 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.Cochise County, Arizona · Population 125,458
0.7%
Mining share of county employment
$58,970
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q1 | 141 | 0 | 0 | 0.0 |
| 2024 Q4 | 111 | 0 | 0 | 0.0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.