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MSHA mine register by county

Mines in Multnomah County, Oregon

Multnomah County, Oregon has 38 mines on MSHA's register: 5 active, 1 intermittent, 32 abandoned. 2 miners have died and 254 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 1,177 citations.

Every mine MSHA has registered in Multnomah 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 Multnomah County →

Mines on register
38
Active
5
Fatalities on record
2
Citations issued
1,177
0 underground · 35 surface · 3 facilities 0 coal · 38 metal and non-metal 1 intermittent 32 abandoned 254 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.
Multnomah County, Oregon · Population 803,863
0.0%
Mining share of county employment
$86,247
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
Morse Brothers Inc 3 1 1
U S Forest Service 3 0 0
CalPortland Company 2 1 0
Moore Excavation Inc. 2 0 0
Ross Island Sand & Gravel Company 1 0 1
Angell Brothers Inc 1 0 0
Ash Grove Cement Company 1 1 0
Bart Associates Inc 1 0 0
Columbia Sand & Gravel Cascade Const 1 0 0
Columbia Sand & Gravel Company 1 0 0
Mines in Multnomah County38 on register
  1. Rivergate Plant
    Facility metal/non-metal · Ash Grove Cement Company · MSHA ID 3500320
    Active
  2. Rivergate
    Facility metal/non-metal · Gilmour and Company · MSHA ID 3503659
    Active
  3. Millbank Materials USA, LTD
    Facility metal/non-metal · Millbank Materials USA · MSHA ID 3503831
    Active
  4. METRO PORTABLE #2
    Surface metal/non-metal · Knife River Corporation-Northwest · MSHA ID 3503527
    Active
  5. Bluelake DBA CalPortland
    Surface metal/non-metal · CalPortland Company · MSHA ID 3503537
    Active
  6. Ross Island Plant
    Surface metal/non-metal · Ross Island Sand & Gravel Company · MSHA ID 3500540
    Abandoned
  7. Angell Quarry
    Surface metal/non-metal · Knife River Corporation - Northwest · MSHA ID 3503465
    Abandoned
  8. ANGELL BROS INC
    Surface metal/non-metal · Angell Brothers Inc · MSHA ID 3500910
    Abandoned
  9. Meadows Rock
    Surface metal/non-metal · Wilkins Trucking Company Inc · MSHA ID 3503491
    Abandoned
  10. Downtown Plant
    Surface metal/non-metal · Lone Star Northwest · MSHA ID 3500708
    Abandoned
  11. Rickard Rock Quarry
    Surface metal/non-metal · Farwest Portable Crushing Inc · MSHA ID 3503655
    Abandoned
  12. Corbett Quarry
    Surface metal/non-metal · Heritage Rock LLC · MSHA ID 3503560
    Abandoned
  13. VANCE PIT & PLANT
    Surface metal/non-metal · Multnomah Cnty-Or Transportation & Land Use Plng · MSHA ID 3500419
    Abandoned
  14. Fir Station Pit
    Surface metal/non-metal · Porter W Yett Company · MSHA ID 3500600
    Abandoned
  15. Portable Crusher
    Surface metal/non-metal · Bart Associates Inc · MSHA ID 3503281
    Abandoned
  16. Chinook Yard
    Surface metal/non-metal · Moore Excavation Inc. · MSHA ID 3503847
    Intermittent
  17. Linnton DBA CalPortland
    Surface metal/non-metal · CalPortland Company · MSHA ID 3503475
    Abandoned
  18. De Atley Co-Plant #3
    Surface metal/non-metal · De Atley Company Inc · MSHA ID 3500597
    Abandoned
  19. Empco Plant
    Surface metal/non-metal · Excavated Materials Processing Company · MSHA ID 3503110
    Abandoned
  20. Gresham Clay Mine
    Surface metal/non-metal · Mutual Materials Company · MSHA ID 3500233
    Abandoned
  21. PORTABLE #1
    Surface metal/non-metal · Kiewit Pacific Co. · MSHA ID 3503238
    Abandoned
  22. NUTTER PORTABLE CRUSHER
    Surface metal/non-metal · Nutter Underground · MSHA ID 3503338
    Abandoned
  23. Portable
    Surface metal/non-metal · Golden Streets Mining, L.L.C. · MSHA ID 3503876
    Abandoned
  24. Rainier Rock
    Surface metal/non-metal · Rainier Rock LLC · MSHA ID 3503676
    Abandoned
  25. City Pit 1525 Trs
    Surface metal/non-metal · U S Forest Service · MSHA ID 3501341
    Abandoned
  26. Columbia Sand & Gravel
    Surface metal/non-metal · Columbia Sand & Gravel Company · MSHA ID 3500471
    Abandoned
  27. L T Crusher #1
    Surface metal/non-metal · L T Contractors Inc · MSHA ID 3503348
    Abandoned
  28. Lakewood Pit
    Surface metal/non-metal · Empco · MSHA ID 3503041
    Abandoned
  29. Moore Excavation Inc
    Surface metal/non-metal · Moore Excavation Inc · MSHA ID 3503609
    Abandoned
  30. Porters Point 1610 Trs
    Surface metal/non-metal · U S Forest Service · MSHA ID 3501344
    Abandoned
  31. Portland Sand & Gravel Company Incorpora
    Surface metal/non-metal · Portland Sand & Gravel Company Inc · MSHA ID 3500529
    Abandoned
  32. Rivergate Quarry And Plant
    Surface metal/non-metal · Columbia West Materials & Constructors Inc · MSHA ID 3500076
    Abandoned
  33. South Side 1621 Trs
    Surface metal/non-metal · U S Forest Service · MSHA ID 3501350
    Abandoned
  34. Stark Pit
    Surface metal/non-metal · Columbia Sand & Gravel Cascade Const · MSHA ID 3500932
    Abandoned
  35. SUNDIAL
    Surface metal/non-metal · Morse Brothers Inc · MSHA ID 3503401
    Abandoned
  36. Swan Island Sand And Gravel
    Surface metal/non-metal · Western-Pacific Construction Materials Company · MSHA ID 3501329
    Abandoned
  37. Troutdale Pit And Plant
    Surface metal/non-metal · Troutdale Sand & Gravel Company Inc · MSHA ID 3500553
    Abandoned
  38. Walrath/Bluelake Pit
    Surface metal/non-metal · T. E. Walrath Trucking Inc. · MSHA ID 3503554
    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.