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MSHA mine register by county

Mines in Washington County, Oregon

Washington County, Oregon has 44 mines on MSHA's register: 4 active, 40 abandoned. 3 miners have died and 225 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 1,408 citations.

Every mine MSHA has registered in Washington 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 Washington County →

Mines on register
44
Active
4
Fatalities on record
3
Citations issued
1,408
0 underground · 43 surface · 1 facilities 0 coal · 44 metal and non-metal 40 abandoned 225 reported accidents, 1983–2026
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.
Washington County, Oregon · Population 600,266
0.0%
Mining share of county employment
$104,434
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
Tigard Sand & Gravel LLC 3 0 0
Washington County Department Of Public Works 3 0 0
FARMINGTON MOBILE CRUSHING, LLC 2 1 0
Karban Corp 2 0 0
Knife River Corporation-Northwest 2 1 0
Quality Rock Company 2 0 0
Vanaken Rock Products Inc 2 0 0
Northfork Excavating Inc 1 0 2
Grove Crushing Company 1 0 1
Arthur Eaton Sand & Gravel 1 0 0
Mines in Washington County44 on register
  1. Farmington Pit
    Surface metal/non-metal · Knife River Corporation-Northwest · MSHA ID 3500634
    Active
  2. Laurelwood Quarry
    Surface metal/non-metal · Western Rock Resources LLC · MSHA ID 3503439
    Active
  3. Parkin Quarry
    Surface metal/non-metal · Farmington Mobile Crushing LLC · MSHA ID 3503724
    Active
  4. Peterson Rock Pit
    Surface metal/non-metal · Northside Rock Products LLC · MSHA ID 3503850
    Active
  5. Northfork Excavating Incorporated
    Surface metal/non-metal · Northfork Excavating Inc · MSHA ID 3503418
    Abandoned
  6. GROVE PORTABLE
    Surface metal/non-metal · Grove Crushing Company · MSHA ID 3503363
    Abandoned
  7. 104 Portable
    Surface metal/non-metal · Tigard Sand & Gravel LLC · MSHA ID 3503429
    Abandoned
  8. Koehler Quarry
    Surface metal/non-metal · Baker Rock Resources · MSHA ID 3500014
    Abandoned
  9. COFFEE LAKE POND
    Surface metal/non-metal · Knife River Corporation-Northwest · MSHA ID 3503022
    Abandoned
  10. Cochran Quarry
    Surface metal/non-metal · Karban Corp · MSHA ID 3502974
    Abandoned
  11. Crusher #4
    Surface metal/non-metal · Meisel Rock Products · MSHA ID 3503608
    Abandoned
  12. Progress Quarry
    Surface metal/non-metal · Morse Brothers Inc · MSHA ID 3501970
    Abandoned
  13. 115 Portable
    Surface metal/non-metal · Tigard Sand & Gravel LLC · MSHA ID 3503303
    Abandoned
  14. 130 - Crusher
    Surface metal/non-metal · Tigard Sand & Gravel LLC · MSHA ID 3500975
    Abandoned
  15. Crusher No 1
    Surface metal/non-metal · C & M Crushing & Recycling · MSHA ID 3503583
    Abandoned
  16. JDH CONSTRUCTION LTD
    Surface metal/non-metal · Jdh Construction Ltd · MSHA ID 3502784
    Abandoned
  17. Olson Brothers Logging L.L.C
    Surface metal/non-metal · Olson Brothers Logging L.L.C · MSHA ID 3503853
    Abandoned
  18. J R Rock
    Surface metal/non-metal · J R Rock Inc · MSHA ID 3503649
    Abandoned
  19. Oregon Rock Products Incorporated
    Surface metal/non-metal · Oregon Rock Products Inc · MSHA ID 3502759
    Abandoned
  20. Leahy Portable
    Surface metal/non-metal · Ken Leahy Construction Inc · MSHA ID 3503368
    Abandoned
  21. Portable Plant One
    Surface metal/non-metal · Dave Dober Construction Inc · MSHA ID 3503946
    Abandoned
  22. SATELLITE QUARRY
    Surface metal/non-metal · Vanaken Rock Products Inc · MSHA ID 3500051
    Abandoned
  23. BAILEY QUARRY
    Surface metal/non-metal · Richard E Seiffert Resources · MSHA ID 3503489
    Abandoned
  24. PORTABLE #1
    Surface metal/non-metal · FARMINGTON MOBILE CRUSHING, LLC · MSHA ID 3503833
    Abandoned
  25. 102-TONQUIN QUARRY
    Surface metal/non-metal · Circle Construction Company · MSHA ID 3500978
    Abandoned
  26. Barstad Pit
    Surface metal/non-metal · Tigard Recreation Park Inc · MSHA ID 3500749
    Abandoned
  27. Durham Quarry
    Surface metal/non-metal · Washington County · MSHA ID 3500558
    Abandoned
  28. Eaton Pit
    Surface metal/non-metal · Arthur Eaton Sand & Gravel · MSHA ID 3502286
    Abandoned
  29. HAYDEN QUARRY
    Surface metal/non-metal · Quality Rock Company · MSHA ID 3503446
    Abandoned
  30. Jackson Quarry
    Surface metal/non-metal · Washington County Department Of Public Works · MSHA ID 3500137
    Abandoned
  31. Karban Gales Creek Pit
    Surface metal/non-metal · Karban Rock Inc · MSHA ID 3502995
    Abandoned
  32. Lee Persons Quarry
    Surface metal/non-metal · Washington County Department Of Public Works · MSHA ID 3502840
    Abandoned
  33. Moore Rock Pit
    Surface metal/non-metal · Moore Rock Products · MSHA ID 3501299
    Abandoned
  34. Murry Pit
    Surface metal/non-metal · Progress Quarries Inc · MSHA ID 3502909
    Abandoned
  35. Otto Rock Pit
    Surface metal/non-metal · David H Otto · MSHA ID 3502473
    Abandoned
  36. Person Quarry
    Surface metal/non-metal · Washington County Department Of Public Works · MSHA ID 3502855
    Abandoned
  37. PETERSON QUARRY
    Surface metal/non-metal · Pacific Rock Products Llc · MSHA ID 3503431
    Abandoned
  38. Quality Rock #1
    Surface metal/non-metal · Quality Rock Company · MSHA ID 3500077
    Abandoned
  39. Scholls Pit
    Surface metal/non-metal · Scholls Tile Company · MSHA ID 3500244
    Abandoned
  40. Stearns Quarry
    Surface metal/non-metal · Stearns Rock Crushing Co Inc · MSHA ID 3502285
    Abandoned
  41. Vaandering Quarry And Plant
    Surface metal/non-metal · Vaandering Rock Company · MSHA ID 3500132
    Abandoned
  42. Vanaken Traprock Quarry
    Surface metal/non-metal · Vanaken Rock Products Inc · MSHA ID 3500221
    Abandoned
  43. Willamette Water Supply RES 1.0
    Surface metal/non-metal · Coffman Excavation · MSHA ID 3503934
    Abandoned
  44. Wood Street Distribution Site
    Facility metal/non-metal · Karban Corp · MSHA ID 3503399
    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.