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Abandoned mines › Oregon
Abandoned mine inventory

Abandoned mines in Coos County, Oregon

Coos County, Oregon has 192 mine and prospect features on USGS topographic maps published 1942–1990, including 6 mine openings (shafts, adits and air shafts) and 17 prospect pits; 17 of the features carry a name on the map. OSMRE's abandoned mine land inventory lists 27 problems in the county, 12 of them not yet reclaimed. MSHA's register carries 56 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Coos County, every OSMRE abandoned mine land problem in the county, and every MSHA-registered mine here with status Abandoned. Named features are listed below; unnamed ones are counted by type. Locations are deliberately not shown: this page says what abandoned workings are in the county, not where to find them. They are dangerous and should not be entered.

Mapped mine features (USGS)
192
Mine openings
6
OSMRE problems unreclaimed
12
MSHA mines marked abandoned
56
17 features carry a name17 prospect pits36 quadrangle maps, published 1942–1990 27 OSMRE problems, 15 reclaimed 0 MSHA mines abandoned and sealed
What the features are
  1. Mine openings
    shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
    28 12.8%
  2. Prospect pits and trenches
    shallow exploration diggings that never became a mine
    17 7.8%
  3. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    18 8.2%
  4. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    148 67.6%
  5. Dumps, tailings, spoil and gob
    what mining left above ground
    3 1.4%
  6. Mills, tipples and facilities
    processing plants and hazardous structures
    2 0.9%
  7. Other reclamation problems
    highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
    3 1.4%
Named features on the maps17 named · from the USGS compilation
Name on map Feature
Bolivar Mine Open Pit Mine area
Chickamin Mine Prospect Pit
Eagle Mine Open Pit Mine
Fuller Mine Open Pit Mine
Fuller Mine Open Pit Mine
Hervey Quarry Quarry
Kuhnert Quarry Quarry
Lampa Mine Open Pit Mine
Libby Coal Mine Coal Mine
Overland Coal Mine Coal Mine
Overland Mine Adit
Pioneer Mine Open Pit Mine
Seven Devils Mine Open Pit Mine
Southport Coal Mine Coal Mine
Southport Mine Adit
Thomas Mine Open Pit Mine
Wilson Head Quarry Quarry area

A name is the label printed beside the symbol on the map. "First mapped" is the earliest topographic edition that shows the symbol, which bounds the feature's age from above; it is not the date it was worked. Unnamed features (most prospect pits, adits and shafts carry no label) are in the counts above but not this list.

OSMRE abandoned mine land problems27 on inventory
Problem area Problem Status
Archer Mines P2 Portals In Reclamation
Beaver Hill Mine P2 Vertical Openings Reclamation Completed
Eden Ridge Mines P2 Portals In Reclamation
Empire Mine P1 Portals Reclamation Completed
Empire Mine P1 Subsidence Reclamation Completed
Englewood Mines P2 Portals In Reclamation
Glasgow Mine P2 Vertical Openings In Reclamation
Libby Mines P2 Vertical Openings In Reclamation
Lillian Mines P2 Portals In Reclamation
Overland Mine P2 Portals In Reclamation
Panter Mine P2 Portals Reclamation Completed
Panter Mine P3 Equipment Facility In Reclamation
Parker Mine P2 Portals In Reclamation
Reservoir Mine P1 Portals Reclamation Completed
Reservoir Mine P1 Vertical Openings Reclamation Completed
Reservoir Mine P3 Mine Opening Reclamation Completed
Robertson Mine P2 Vertical Openings In Reclamation
Scorbi-mc Ginty Mines P2 Vertical Openings Reclamation Completed
South Slough Mines P1 Portals Reclamation Completed
South Slough Mines P2 Hazardous Equip & Facilities Reclamation Completed
South Slough Mines P2 Portals Reclamation Completed
Southport Mines P1 Hazardous Equip & Facilities Reclamation Completed
Southport Mines P1 Portals Reclamation Completed
Southport Mines P1 Vertical Openings Reclamation Completed
Swanson Mine P2 Portals In Reclamation
Vaughan Mine P2 Vertical Openings In Reclamation
Wilcox Mine P2 Portals Reclamation Completed

Problem types carry OSMRE's priority prefix: P1 and P2 are threats to health, safety and property, P3 is environmental. A problem area is a cluster of problems reclaimed as one project; several rows can share one location.

MSHA-registered mines with status Abandoned56 on register
  1. 101 Sand & Gravel Pit & Plant
    Surface metal/non-metal · 101 Sand & Gravel · MSHA ID 3500730
    Abandoned
  2. 4000 Quarry
    Surface metal/non-metal · Weyerhaeuser Company · MSHA ID 3503040
    Abandoned
  3. Baker Creek Pit
    Surface metal/non-metal · Rock 2 River Resources · MSHA ID 3503913
    Abandoned
  4. BARKLEY PIT
    Surface metal/non-metal · All Coast Concrete · MSHA ID 3503509
    Abandoned
  5. Blue Pit And Plant
    Surface metal/non-metal · Bob Angell Inc · MSHA ID 3501282
    Abandoned
  6. BOB ANGELL INC. MOBILE INIT #1
    Surface metal/non-metal · Bob Angell Inc · MSHA ID 3503289
    Abandoned
  7. Broadbent Bar
    Surface metal/non-metal · Coos County Highway Department · MSHA ID 3501014
    Abandoned
  8. Broadbent Wash Plant
    Surface metal/non-metal · LTM Incorporated-Coast Division · MSHA ID 3503389
    Abandoned
  9. Bullards Pit & Plant
    Surface metal/non-metal · Bullards Sand & Gravel Co Inc · MSHA ID 3500731
    Abandoned
  10. Coos River Quarry
    Surface metal/non-metal · Coos County Road Department · MSHA ID 3501028
    Abandoned
  11. Eagle Pit
    Surface metal/non-metal · W S Mining Company · MSHA ID 3503034
    Abandoned
  12. Eckley Quarry
    Surface metal/non-metal · Coos County Road Department · MSHA ID 3502881
    Abandoned
  13. FOE INC
    Surface metal/non-metal · Five Oaks Excavation Inc. · MSHA ID 3503749
    Abandoned
  14. Foggy Creek Pit
    Surface metal/non-metal · U S Forest Service · MSHA ID 3501281
    Abandoned
  15. FT2650 Jaw Plant
    Surface metal/non-metal · Kincheloe & Sons Inc · MSHA ID 3501280
    Abandoned
  16. GLENBROOK NICKEL PORT FACILITY
    Facility metal/non-metal · Glenbrook Nickel Company · MSHA ID 3503387
    Abandoned
  17. Hervey Quarry
    Surface metal/non-metal · R&M Quarries LLC · MSHA ID 3503845
    Abandoned
  18. IKE PARKER CORPORATION
    Surface metal/non-metal · Ike Parker Corp · MSHA ID 3503512
    Abandoned
  19. Indian Creek Pit
    Surface metal/non-metal · L/C Trucking · MSHA ID 3502899
    Abandoned
  20. Kenstone Quarry
    Surface metal/non-metal · Bandon Concrete & Development · MSHA ID 3503807
    Abandoned
  21. Kenstone Quarry And Plant
    Surface metal/non-metal · Coos Bay Timber Operators Inc · MSHA ID 3501020
    Abandoned
  22. KOMATSU (PORTABLE JAW)
    Surface metal/non-metal · Coos Bay Timber Operators Inc · MSHA ID 3501018
    Abandoned
  23. Komatsu #1
    Surface metal/non-metal · Dew Valley Rock and Timber LLC · MSHA ID 3503753
    Abandoned
  24. LC 300
    Surface metal/non-metal · Laskey Clifton Corp · MSHA ID 3503668
    Abandoned
  25. LC-200
    Surface metal/non-metal · Laskey-Clifton Corporation · MSHA ID 3503654
    Abandoned
  26. LC-300
    Surface metal/non-metal · Laskey-Clifton Corporation · MSHA ID 3503529
    Abandoned
  27. Lee Valley Rock Products LLC
    Surface metal/non-metal · Lee Valley Rock Products LLC · MSHA ID 3503618
    Abandoned
  28. Leep #2 Quarry & Plant
    Surface metal/non-metal · Norway Rock Products · MSHA ID 3502343
    Abandoned
  29. Little Lode
    Underground metal/non-metal · Brown Mining Company · MSHA ID 3502849
    Abandoned
  30. Longridge
    Surface metal/non-metal · Weyerhaeuser Company · MSHA ID 3502852
    Abandoned
  31. Main P. P.
    Surface metal/non-metal · Main Rock Products Inc · MSHA ID 3503296
    Abandoned
  32. Mcmullen Creek Pit
    Surface metal/non-metal · Bob Angell Inc · MSHA ID 3502356
    Abandoned
  33. Merchen & Reed Gr. Co., Inc.
    Surface metal/non-metal · Merchem & Reed Gr. Co., Inc. · MSHA ID 3501017
    Abandoned
  34. Mine 2
    Surface metal/non-metal · J.E. McAmis Inc · MSHA ID 3503877
    Abandoned
  35. Mobile Crusher # 3
    Surface metal/non-metal · LTM Incorporated dba Knife River Materials · MSHA ID 3500555
    Abandoned
  36. Mobile Crusher #2
    Surface metal/non-metal · Knife River Materials · MSHA ID 3503505
    Abandoned
  37. Morris Quarry & Plant
    Surface metal/non-metal · Bob Angell Inc · MSHA ID 3500874
    Abandoned
  38. Mullen Road Processing Site & Mine Sites
    Facility metal/non-metal · Oregon Resources Corporation · MSHA ID 3503757
    Abandoned
  39. PEGSON JAW
    Surface metal/non-metal · Coos Bay Timber Operators Inc · MSHA ID 3501019
    Abandoned
  40. PEGSON MAXTRAK 1300 CONE
    Surface metal/non-metal · COOS BAY TIMBER OPERATORS INC · MSHA ID 3503607
    Abandoned
  41. Plant #3
    Surface metal/non-metal · Yates Road Building · MSHA ID 3503943
    Abandoned
  42. Portable 1
    Surface metal/non-metal · Merchen & Reed Gravel Co. Inc. · MSHA ID 3503747
    Abandoned
  43. Portable Plant
    Surface metal/non-metal · R&M Quarries LLC · MSHA ID 3503885
    Abandoned
  44. Portable Symons Cone
    Surface metal/non-metal · Coos Bay Timber Operators, Inc. · MSHA ID 3503606
    Abandoned
  45. Purkerson Quarry & Plant
    Surface metal/non-metal · F K Purkerson Co · MSHA ID 3500871
    Abandoned
  46. RAY CHARD PIT
    Surface metal/non-metal · Ray Chard Trucking & Excavating · MSHA ID 3503484
    Abandoned
  47. Reed Bar Pit And Plant
    Surface metal/non-metal · Coos County Road Department · MSHA ID 3502493
    Abandoned
  48. Robertsons Pit & Plant
    Surface metal/non-metal · Robertsons Inc · MSHA ID 3500732
    Abandoned
  49. Rocky Bar Lode
    Underground metal/non-metal · Brown Mining Company · MSHA ID 3502847
    Abandoned
  50. SCREEN PLANT
    Surface metal/non-metal · Davis Rock & Timber Inc · MSHA ID 3503528
    Abandoned
  51. Sherertz Quarry
    Surface metal/non-metal · Coos County Highway Department · MSHA ID 3501015
    Abandoned
  52. Smith Pit
    Surface metal/non-metal · Coos River Rock · MSHA ID 3503488
    Abandoned
  53. Smith'S Quarry
    Surface metal/non-metal · George W Smith · MSHA ID 3501021
    Abandoned
  54. South Fork Gravel Pit And Plant
    Surface metal/non-metal · South Fork Gravel Ltd · MSHA ID 3500516
    Abandoned
  55. Weekly Pit
    Surface metal/non-metal · Hoover Excavating & Trucking Inc · MSHA ID 3503510
    Abandoned
  56. Weyerhaeuser Portable
    Surface metal/non-metal · Weyerhaeuser Company · MSHA ID 3503085
    Abandoned

Status and date are as reported to MSHA by the operator. Each mine's own page carries its accident, citation and inspection record.

By source vocabularythe publishers' own terms
Feature type Features
Quarry 60
Borrow Pit 36
Gravel Pit 36
Prospect Pit 17
Quarry 16
P2 Portals 10
Open Pit Mine 10
Adit 6
P2 Vertical Openings 6
P1 Portals 4
Open Pit Mine or Quarry 4
Tailings - Undifferentiated 3
Coal Mine 3
P1 Vertical Openings 2
P2 Hazardous Equip & Facilities 1
P3 Mine Opening 1
P1 Hazardous Equip & Facilities 1
Open Pit Mine 1
P3 Equipment Facility 1
P1 Subsidence 1
Other counties in OregonAll counties →
How to read these numbers

A USGS feature is a symbol on a historical topographic map, there when the map was surveyed; it may since have been sealed, reclaimed, built over or reopened as a working mine, and the map does not say which. An OSMRE row is a problem the abandoned mine land program tracks, not a mine. An MSHA mine is a registered operation whose operator reported abandonment, a record that starts in the 1970s. The three overlap and are never added together. The county is assigned from each feature's coordinates against the Census 2023 county boundaries. The full method is on the national page.

Sources
  1. USGS, Consolidated Prospect- and Mine-Related Features from 7.5- and 15-Minute Topographic Quadrangle Maps of the United States (USMIN)
    597,612 point and area features digitized from about 106,350 historical topographic maps published 1886–2006; public domain (CC0). A feature is a map symbol, not a field-verified site, and the map does not say whether it was still worked.
  2. USGS Fact Sheet 2025–3003, The Abandoned Mine Inventory of the United States
    States that as of 2025 there is no comprehensive national inventory of abandoned mine features, and that the detailed national database now being built will not be published.
  3. OSMRE, Abandoned Mine Land Inventory System (e-AMLIS), public Problems layer
    One row per abandoned mine land problem in a problem area, with its type, funding program and reclamation status; mostly coal mined before the 1977 Surface Mining Control and Reclamation Act. Coordinates are the problem area's.
  4. MSHA, Mines dataset (Mine Data Retrieval System)
    Every mine registered with MSHA since the 1970s; a mine reads Abandoned or Abandoned and Sealed when its operator reported that status. Refreshed weekly.
  5. US Census Bureau, 2023 cartographic county boundaries (1:500,000)
    Each feature's county is assigned by its coordinates against these boundaries, not copied from the source file.
  6. GAO-20-238, Abandoned Hardrock Mines (March 2020)
    Federal agencies had identified at least 140,000 abandoned hardrock mine features on federal land and estimated more than 390,000 more not yet captured in their databases.
  7. Abandoned Hardrock Mine Reclamation (AHMR) Program, US Department of the Interior
    The program the USGS inventory is compiled for. Its appropriations and the 674,000 field-confirmed feature count on this page were provided by the program manager, Office of Environmental Policy and Compliance, and are cited with permission (2026-09-08).
  8. IMCC-NAAMLP Hardrock AML Report
    Page 48 carries the two figures this page leans on: USGS estimates 633,181 of the 725,690 mine features it recorded from historic topographic maps, 87 percent, are hardrock; and state and federal agencies have submitted more than 724,000 AML features to the national database being built, already more than the historic maps hold. Year-by-year AHMR funding is on page 35.