Mining Incidents
MSHA mine register by county

Mines in Dolores County, Colorado

Dolores County, Colorado has 11 mines on MSHA's register: 1 intermittent, 10 abandoned. 4 accidents have been reported at these mines in 1983. Inspectors have issued 5 citations.

Every mine MSHA has registered in Dolores 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 Dolores County →

Mines on register
11
Active
0
Fatalities on record
0
Citations issued
5
5 underground · 5 surface · 1 facilities 0 coal · 11 metal and non-metal 1 intermittent 10 abandoned 4 reported accidents, 1983
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.
Dolores County, Colorado · Population 2,385
1.0%
Mining share of county employment
$70,490
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
Loading map…
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
Anaconda Minerals Company 1 0 0
Dolores Canyon Mines Inc 1 0 0
Dolores County Road Department 1 0 0
H & H Stone Inc 1 0 0
James J Costello 1 0 0
Mountain Gravel & Construction Company 1 0 0
Myron Jones 1 0 0
Rico-Argentine Mining Company 1 0 0
Trinity Mining Company 1 0 0
U S Bureau Of Reclamation 1 0 0
Mines in Dolores County11 on register
  1. Little Silver
    Underground metal/non-metal · James J Costello · MSHA ID 0503878
    Abandoned
  2. Emma Mine
    Underground metal/non-metal · Dolores Canyon Mines Inc · MSHA ID 0503605
    Abandoned
  3. CROSS CANYON QUARRY #2
    Surface metal/non-metal · H & H Stone Inc · MSHA ID 0504698
    Abandoned
  4. Cone Crushing Plant
    Surface metal/non-metal · Mountain Gravel & Construction Company · MSHA ID 0503306
    Abandoned
  5. D.C.1
    Surface metal/non-metal · Dolores County Road Department · MSHA ID 0505208
    Intermittent
  6. Iron Clad
    Underground metal/non-metal · Myron Jones · MSHA ID 0502784
    Abandoned
  7. Mc Phee Reservoir Pit
    Surface metal/non-metal · U S Bureau Of Reclamation · MSHA ID 0504093
    Abandoned
  8. Rico Complex
    Underground metal/non-metal · Anaconda Minerals Company · MSHA ID 0500416
    Abandoned
  9. Rico-Argentine Leaching
    Facility metal/non-metal · Rico-Argentine Mining Company · MSHA ID 0502759
    Abandoned
  10. Rose Bud
    Underground metal/non-metal · Trinity Mining Company · MSHA ID 0503503
    Abandoned
  11. White & Sons Construction Incorporated
    Surface metal/non-metal · White & Sons Construction Inc · MSHA ID 0503961
    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.