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MSHA mine register by county

Mines in Dewey County, South Dakota

Dewey County, South Dakota has 6 mines on MSHA's register: 6 abandoned. 1 are coal mines and 5 metal or non-metal.

Every mine MSHA has registered in Dewey 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 Dewey County →

Mines on register
6
Active
0
Fatalities on record
0
Citations issued
0
0 underground · 6 surface · 0 facilities 1 coal · 5 metal and non-metal 6 abandoned
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.
Dewey County, South Dakota · Population 5,230
0.0%
Mining share of county employment
$57,928
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
Dewey County Highway Department 3 0 0
Bureau Of Indian Affairs 1 0 0
Isobel Coal Company 1 0 0
Schriock Construction Inc 1 0 0
Mines in Dewey County6 on register
  1. Bear Creek Pit
    Surface metal/non-metal · Dewey County Highway Department · MSHA ID 3900919
    Abandoned
  2. Billy Alley Pit
    Surface metal/non-metal · Dewey County Highway Department · MSHA ID 3901083
    Abandoned
  3. Cheyenne River Pit
    Surface metal/non-metal · Bureau Of Indian Affairs · MSHA ID 3901173
    Abandoned
  4. Dewey County Mines
    Surface metal/non-metal · Dewey County Highway Department · MSHA ID 3900847
    Abandoned
  5. Isobel
    Surface coal · Isobel Coal Company · MSHA ID 3901294
    Abandoned and Sealed
  6. Max Schriock Crusher
    Surface metal/non-metal · Schriock Construction Inc · MSHA ID 3901310
    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 South DakotaAll 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.