Mining Incidents
MSHA mine register by county

Mines in Union County, Oregon

Union County, Oregon has 20 mines on MSHA's register: 1 active, 5 intermittent, 14 abandoned. 1 miner has died and 12 accidents have been reported at these mines between 1988 and 2015. Inspectors have issued 196 citations.

Every mine MSHA has registered in Union 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 Union County →

Mines on register
20
Active
1
Fatalities on record
1
Citations issued
196
0 underground · 20 surface · 0 facilities 0 coal · 20 metal and non-metal 5 intermittent 14 abandoned 12 reported accidents, 1988–2015
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.
Union County, Oregon · Population 26,192
0.2%
Mining share of county employment
$64,212
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
LJH Construction LLC 3 0 0
R.D. MAC.inc 2 1 1
Alpine Rock & Redi 1 0 0
Alpine Rock Inc 1 0 0
Boise Cascade Corp 1 0 0
Dmcd Corp 1 0 0
Dmcd Corp 1 0 0
Hood Corp 1 0 0
Marcum Asphalt & Gravel 1 0 0
Panhandle Construction Inc 1 0 0
Mines in Union County20 on register
  1. R. D. MAC, Inc.
    Surface metal/non-metal · R. D. MAC, Inc. · MSHA ID 3500507
    Active
  2. Royal Pit
    Surface metal/non-metal · Royal Rock · MSHA ID 3503550
    Intermittent
  3. Rogers Asphalt Paving Co
    Surface metal/non-metal · Rogers Asphalt Paving Co · MSHA ID 3503352
    Abandoned
  4. Plant 1
    Surface metal/non-metal · LJH Construction LLC · MSHA ID 3503950
    Intermittent
  5. Quail Pit
    Surface metal/non-metal · USA Concrete, LLC · MSHA ID 3503548
    Abandoned
  6. ALPINE ROCK LANT
    Surface metal/non-metal · Alpine Rock & Redi · MSHA ID 3503257
    Abandoned
  7. Plant 3
    Surface metal/non-metal · Ljh Construction LLC · MSHA ID 3503970
    Intermittent
  8. portable HSI
    Surface metal/non-metal · R.D. MAC.inc · MSHA ID 3503972
    Intermittent
  9. Antler No 1 Pit
    Surface metal/non-metal · Dmcd Corp · MSHA ID 3502928
    Abandoned
  10. Camp Carson
    Surface metal/non-metal · Royal Western Mining · MSHA ID 3503081
    Abandoned
  11. Cove Pit And Plant
    Surface metal/non-metal · Stan Robinson Excavating · MSHA ID 3503248
    Abandoned
  12. Lampkins Pit
    Surface metal/non-metal · Hood Corp · MSHA ID 3502603
    Abandoned
  13. Little Catherine Creek Pit
    Surface metal/non-metal · Panhandle Construction Inc · MSHA ID 3502716
    Abandoned
  14. Miller Pit
    Surface metal/non-metal · Union County Road Department · MSHA ID 3500090
    Abandoned
  15. Phillips Creek Pit
    Surface metal/non-metal · Boise Cascade Corp · MSHA ID 3500908
    Abandoned
  16. Pinical Timber Sale Pit
    Surface metal/non-metal · Dmcd Corp · MSHA ID 3503025
    Abandoned
  17. Portable Crusher
    Surface metal/non-metal · Marcum Asphalt & Gravel · MSHA ID 3503295
    Abandoned
  18. Royal Quarry
    Surface metal/non-metal · Raymond Royal · MSHA ID 3503342
    Abandoned
  19. Track Plant 2
    Surface metal/non-metal · Ljh Construction LLC · MSHA ID 3503969
    Intermittent
  20. WASH PLANT
    Surface metal/non-metal · Alpine Rock Inc · MSHA ID 3503460
    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 OregonAll 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.