Rock Solid Portable #1 Metal/Non-Metal
Rock Solid Inc
· Surface
Controlled by
Kolar Laurence
Sheridan County,
WY
·
Abandoned
MSHA Mine ID: 4801521
Rock Solid Portable #1 has no reportable incidents on file with MSHA.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Ownership history
- Salveson Construction Company 1994 to 1995
- Rock Solid Inc 1995 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2000 | 0 |
| 1999 | 0 |
| 1998 | 0 |
| 1997 | 2 |
| 1996 | 5 |
| 1995 | 16 |
| 1994 | 3 |
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.
Rock Solid Portable #1 sits in Sheridan County, Wyoming, where the Census mining category is 4.6% 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.Sheridan County, Wyoming · Population 31,585
4.6%
Mining share of county employment
$70,855
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; earlier incidents are counted but not rate-adjusted, though reported hours reach back to 1983. 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 |
|---|---|---|---|---|
| 2000 Q1 | 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.