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MSHA mine register by county

Mines in Clark County, Idaho

Clark County, Idaho has 10 mines on MSHA's register: 1 active, 9 abandoned. 17 accidents have been reported at these mines between 2005 and 2026. Inspectors have issued 195 citations.

Every mine MSHA has registered in Clark County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.

Abandoned and historical mine features in Clark County →

Mines on register
10
Active
1
Fatalities on record
0
Citations issued
195
0 underground · 10 surface · 0 facilities 0 coal · 10 metal and non-metal 9 abandoned 17 reported accidents, 2005–2026
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.
Clark County, Idaho · Population 776
0.0%
Mining share of county employment
$52,083
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
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MSHA-registered mine, any status

Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.

Operators with the most mines herecurrent operator of record
Operator Mines Active Fatalities
Idaho Travertine Corp 2 0 0
Bob Thompson 1 0 0
Earl Wilcox Contractor 1 0 0
Hallett Minerals Company 1 0 0
Idavue Minerals LLC 1 1 0
Jeppesen & Wilson Co 1 0 0
Jeppesen Wilson Mining Company 1 0 0
Mountain West Products LLC 1 0 0
Spencer Opal Mines 1 0 0
Mines in Clark County10 on register
  1. Idavue Minerals LLC
    Surface metal/non-metal · Idavue Minerals LLC · MSHA ID 1001328
    Active
  2. Continental Ivory Quarry
    Surface metal/non-metal · Idaho Travertine Corp · MSHA ID 1000050
    Abandoned
  3. Dalling Pit
    Surface metal/non-metal · Mountain West Products LLC · MSHA ID 1002012
    Abandoned
  4. JEPPESEN WILSON MINING CO
    Surface metal/non-metal · Jeppesen Wilson Mining Company · MSHA ID 1001958
    Abandoned
  5. SPENCER OPAL MINES
    Surface metal/non-metal · Spencer Opal Mines · MSHA ID 1000565
    Abandoned
  6. CONSOLATION NO. 1
    Surface metal/non-metal · Bob Thompson · MSHA ID 1001930
    Abandoned
  7. Idaho Travertine Quarry
    Surface metal/non-metal · Earl Wilcox Contractor · MSHA ID 1000370
    Abandoned
  8. Montana Travertine Quarry
    Surface metal/non-metal · Hallett Minerals Company · MSHA ID 1001411
    Abandoned
  9. Opal Mountain Mine
    Surface metal/non-metal · Jeppesen & Wilson Co · MSHA ID 1000566
    Abandoned
  10. Walnut Travertine Quarry
    Surface metal/non-metal · Idaho Travertine Corp · MSHA ID 1002005
    Abandoned

Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.

Other counties in IdahoAll counties →
How to read these numbers

The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.