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Abandoned mines › Washington
Abandoned mine inventory

Abandoned mines in Skagit County, Washington

Skagit County, Washington has 215 mine and prospect features on USGS topographic maps published 1921–1998, including 14 mine openings (shafts, adits and air shafts) and 2 prospect pits; 6 of the features carry a name on the map. OSMRE's abandoned mine land inventory lists 4 problems in the county, 1 of them not yet reclaimed. MSHA's register carries 66 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Skagit 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)
215
Mine openings
14
OSMRE problems unreclaimed
1
MSHA mines marked abandoned
66
6 features carry a name2 prospect pits42 quadrangle maps, published 1921–1998 4 OSMRE problems, 3 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
    18 8.2%
  2. Prospect pits and trenches
    shallow exploration diggings that never became a mine
    2 0.9%
  3. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    9 4.1%
  4. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    189 86.3%
  5. Dumps, tailings, spoil and gob
    what mining left above ground
    1 0.5%
Named features on the maps6 named · from the USGS compilation
Name on map Feature
Cerscent Mine Adit
Cokedale Mine Adit
Cokedale Mine Adit
Diamond Mine Adit
Skagit Queen Mine Adit
Talc Mine Adit

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 problems4 on inventory
Problem area Problem Status
Cokedale Mine P2 Vertical Openings In Reclamation
Hamilton Mine P2 Portals Reclamation Completed
Hamilton Mine P2 Vertical Openings Reclamation Completed
Minkler Lake 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 Abandoned66 on register
  1. Adverse Pit
    Surface metal/non-metal · U S Forest Service · MSHA ID 4502128
    Abandoned
  2. B A Van De Grift Pit
    Surface metal/non-metal · B A Van De Grift · MSHA ID 4503179
    Abandoned
  3. Beacon Talc Mine
    Underground metal/non-metal · Beacon Talc Products · MSHA ID 4502436
    Abandoned
  4. Beaver Lake Quarry
    Surface metal/non-metal · Kiewit Construction Company · MSHA ID 4503670
    Abandoned
  5. Big Lake Pit
    Surface metal/non-metal · Empire Construction · MSHA ID 4502691
    Abandoned
  6. BUTLER PIT
    Surface metal/non-metal · Miles Sand & Gravel Company · MSHA ID 4500590
    Abandoned
  7. Butler Pit & Plant
    Surface metal/non-metal · Skagit County Road Department · MSHA ID 4500692
    Abandoned
  8. Butler Pit And Portable Mill
    Surface metal/non-metal · M A Segale Inc · MSHA ID 4501141
    Abandoned
  9. C&S Construction Mobile Crushing
    Facility metal/non-metal · C&S Construction · MSHA ID 4503778
    Abandoned
  10. Cascade Talc Pit
    Surface metal/non-metal · Cascade Talc Inc · MSHA ID 4500377
    Abandoned
  11. Casey's Quarry
    Surface metal/non-metal · Scarsella Bros Inc. · MSHA ID 4503681
    Abandoned
  12. Challenger Pit
    Surface metal/non-metal · Skagit Aggregates LLC · MSHA ID 4503838
    Abandoned
  13. Cheiftain Powerscreen
    Surface metal/non-metal · Miles Sand & Gravel Company · MSHA ID 4503634
    Abandoned
  14. City Pit
    Surface metal/non-metal · City Of Mt Vernon Street Dept · MSHA ID 4500965
    Abandoned
  15. City Pit
    Surface metal/non-metal · A J I Corp · MSHA ID 4501149
    Abandoned
  16. Clendenen Pit
    Surface metal/non-metal · U S Forest Service · MSHA ID 4501917
    Abandoned
  17. Colony Mountain Pit
    Surface metal/non-metal · Valley Paving & Construction Inc · MSHA ID 4503233
    Abandoned
  18. CRUSHER 700
    Surface metal/non-metal · Crown Pacific Ltd · MSHA ID 4503322
    Abandoned
  19. Cunningham Crushing, Inc
    Surface metal/non-metal · Cunningham Crushing, Inc. · MSHA ID 4503099
    Abandoned
  20. Curry Eerkes & Johnson Pit
    Surface metal/non-metal · Curry Eerkes & Johnson · MSHA ID 4502593
    Abandoned
  21. D N R Pit
    Surface metal/non-metal · Skagit County Road Department · MSHA ID 4502159
    Abandoned
  22. DEANE PIT
    Surface metal/non-metal · Lake Erie Trucking · MSHA ID 4502153
    Abandoned
  23. Dodge Valley Quarry
    Surface metal/non-metal · Skagit County Road Department · MSHA ID 4501010
    Abandoned
  24. Dukes Hill Quarry
    Surface metal/non-metal · Skagit County Public Works · MSHA ID 4501020
    Abandoned
  25. Eagle Bluff Pit And Portable Mill
    Surface metal/non-metal · Skagit County Road Department · MSHA ID 4501940
    Abandoned
  26. Geep Pit
    Surface metal/non-metal · U S Forest Service · MSHA ID 4502511
    Abandoned
  27. Go-Go Talc Mine
    Underground metal/non-metal · Beacon Talc Products · MSHA ID 4502437
    Abandoned
  28. Grandy Pit
    Surface metal/non-metal · M & M Crushing Company Inc · MSHA ID 4502899
    Abandoned
  29. Hamilton Mill
    Surface metal/non-metal · Unimin Corp · MSHA ID 4500779
    Abandoned
  30. Inman Pit And Portable Mill
    Surface metal/non-metal · Skagit County Road Department · MSHA ID 4500691
    Abandoned
  31. Lang Pit
    Surface metal/non-metal · G R Severson Trucking Company · MSHA ID 4502176
    Abandoned
  32. Larson Bridge Pit
    Surface metal/non-metal · Scott Paper Company · MSHA ID 4501361
    Abandoned
  33. Last Chance Pit No 1
    Surface metal/non-metal · Summit Timber Company · MSHA ID 4502502
    Abandoned
  34. Marblemount Quarry
    Surface metal/non-metal · Colony Sand & Gravel · MSHA ID 4503695
    Abandoned
  35. Mayer City Pit
    Surface metal/non-metal · J I Mayer · MSHA ID 4501148
    Abandoned
  36. Mc Corkle Pit
    Surface metal/non-metal · San Juan Fidalgo Holding Company Inc · MSHA ID 4503214
    Abandoned
  37. Mine 1
    Surface metal/non-metal · AARON Mining LLC · MSHA ID 4503754
    Abandoned
  38. MINE 1
    Surface metal/non-metal · J.E. McAmis Inc · MSHA ID 4503788
    Abandoned
  39. Nooksack Pit
    Surface metal/non-metal · Olson & Taylor Inc · MSHA ID 4502900
    Abandoned
  40. North Big Deer Pit
    Surface metal/non-metal · Cascade Roads Inc · MSHA ID 4502510
    Abandoned
  41. Peterson Pit
    Surface metal/non-metal · Miles Sand & Gravel Company · MSHA ID 4503189
    Abandoned
  42. Portable Crushing Screening Plant
    Surface metal/non-metal · Jij Construction Company Inc · MSHA ID 4503190
    Abandoned
  43. Rock Cut Quarry
    Surface metal/non-metal · Skagit County Road Department · MSHA ID 4502275
    Abandoned
  44. Rockport Quarry LLC
    Surface metal/non-metal · Rockport Quarry LLC · MSHA ID 4503677
    Abandoned
  45. Rocky Creek Quarry
    Surface metal/non-metal · Olson-Taylor Inc · MSHA ID 4502979
    Abandoned
  46. Samish Pit
    Surface metal/non-metal · Miles Sand & Gravel Company · MSHA ID 4500605
    Abandoned
  47. Scar Face Quarry
    Surface metal/non-metal · Olson-Taylor Inc · MSHA ID 4503010
    Abandoned
  48. Shop Pit
    Surface metal/non-metal · Catapult Heavy Construction Inc · MSHA ID 4502980
    Abandoned
  49. Skagit Ready Mix Yard
    Surface metal/non-metal · Skagit Ready Mix · MSHA ID 4503188
    Abandoned
  50. Skagit River Bar & Portable Plant
    Surface metal/non-metal · Aggregate Products Inc · MSHA ID 4501504
    Abandoned
  51. Skagit Talc Mine
    Underground metal/non-metal · Ruby River Mining Company · MSHA ID 4502416
    Abandoned
  52. Skoal Talc Mine
    Underground metal/non-metal · Beacon Talc Products · MSHA ID 4502438
    Abandoned
  53. Snowwhite And Dwarf Pit
    Surface metal/non-metal · Stone Craft · MSHA ID 4502439
    Abandoned
  54. Stilly Pass Pit And Portable Mill
    Surface metal/non-metal · Puget Sound Surfacers Inc · MSHA ID 4501941
    Abandoned
  55. Talc Pit (Rainbow Claim)
    Surface metal/non-metal · Cascade Minerals Inc · MSHA ID 4500938
    Abandoned
  56. Talc Pit And Mill
    Surface metal/non-metal · Bob Wade · MSHA ID 4501363
    Abandoned
  57. Tennyson Pit
    Surface metal/non-metal · Herman C Hobbick · MSHA ID 4500704
    Abandoned
  58. Twin Sisters Quarry
    Surface metal/non-metal · Aimcor Olivine · MSHA ID 4501165
    Abandoned
  59. Upper Samish Pit
    Surface metal/non-metal · Skagit County Road Department · MSHA ID 4502643
    Abandoned
  60. VALLEY READY MIX PIT
    Surface metal/non-metal · Valley Ready Mix Inc · MSHA ID 4501589
    Abandoned
  61. Valumines Prospect
    Underground metal/non-metal · Valumines Inc · MSHA ID 4500894
    Abandoned
  62. Wash Plant
    Surface metal/non-metal · Csr Associated Sand & Gravel Company Inc · MSHA ID 4503300
    Abandoned
  63. WHATCOM AND SKAGIT QUARRY
    Surface metal/non-metal · Whatcom-Skagit Quarry · MSHA ID 4502184
    Abandoned
  64. Whitmarsh Pit
    Surface metal/non-metal · Concrete Nor'West Inc · MSHA ID 4502607
    Abandoned
  65. Wiggles Pit
    Surface metal/non-metal · Timberline Road Construction Inc · MSHA ID 4502681
    Abandoned
  66. Wooding Pit #2
    Surface metal/non-metal · Lake Erie Trucking · MSHA ID 4503218
    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
Gravel Pit 59
Borrow Pit 41
Quarry 40
Gravel Pit 26
Adit 14
Quarry 10
Borrow Pit 6
Open Pit Mine 3
Gravel/Borrow Pit - Undifferentiated 3
Open Pit Mine or Quarry 3
P2 Vertical Openings 2
P2 Portals 2
Disturbed Surface 2
Sand Pit 2
Prospect Pit 2
Quarry - Rock 1
Open Pit Mine 1
Mine Dump 1
Gravel/Borrow Pit - Undifferentiated 1
Other counties in WashingtonAll 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.