Mining Incidents
MSHA mine register by county

Mines in Custer County, Colorado

Custer County, Colorado has 12 mines on MSHA's register: 3 active, 2 intermittent, 7 abandoned. Inspectors have issued 158 citations.

Every mine MSHA has registered in Custer 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 Custer County →

Mines on register
12
Active
3
Fatalities on record
0
Citations issued
158
1 underground · 10 surface · 1 facilities 0 coal · 12 metal and non-metal 2 intermittent 7 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.
Custer County, Colorado · Population 5,073
0.7%
Mining share of county employment
$72,700
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
Colorado Quarries Inc 3 2 0
Colorado Department Of Highways 2 0 0
Lyons Pit 2 0 0
Colorado Crushing Inc 1 1 0
Custer County Road & Bridge 1 0 0
Griffin & Mc Creight Mining Company 1 0 0
Persolite Products Inc 1 0 0
Polonia Mining Company 1 0 0
Mines in Custer County12 on register
  1. CRUSHER #2
    Surface metal/non-metal · Colorado Crushing Inc · MSHA ID 0504687
    Active
  2. Portable Unit #3
    Surface metal/non-metal · Colorado Quarries Inc · MSHA ID 0504948
    Active
  3. Portable Unit #4
    Surface metal/non-metal · Colorado Quarries Inc · MSHA ID 0504384
    Active
  4. Buffalo Hunter Load
    Surface metal/non-metal · Lucky VI Quarry · MSHA ID 0505064
    Intermittent
  5. Lyons Pit
    Surface metal/non-metal · Lyons Pit · MSHA ID 0505179
    Intermittent
  6. Custer County Pit No 1
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503492
    Abandoned
  7. Persolite Products-Rosita Pit
    Surface metal/non-metal · Persolite Products Inc · MSHA ID 0500430
    Abandoned
  8. Polonia Mine & Mill
    Facility metal/non-metal · Polonia Mining Company · MSHA ID 0503897
    Abandoned
  9. Portable Unit #4
    Surface metal/non-metal · Colorado Quarries Inc · MSHA ID 0504198
    Abandoned
  10. Screening Plant
    Surface metal/non-metal · Custer County Road & Bridge · MSHA ID 0504668
    Abandoned
  11. Shaun Lode
    Underground metal/non-metal · Griffin & Mc Creight Mining Company · MSHA ID 0503728
    Abandoned
  12. State Land Board
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503328
    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 ColoradoAll 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.