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Abandoned mines › Maine
Abandoned mine inventory

Abandoned mines in Somerset County, Maine

Somerset County, Maine has 465 mine and prospect features on USGS topographic maps published 1955–1989. MSHA's register carries 34 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Somerset 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)
465
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
34
0 features carry a name0 prospect pits80 quadrangle maps, published 1955–1989 0 MSHA mines abandoned and sealed
What the features are
  1. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    8 1.7%
  2. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    457 98.3%
MSHA-registered mines with status Abandoned34 on register
  1. Athens Pit
    Surface metal/non-metal · Farrin Bros & Smith Inc. · MSHA ID 1700985
    Abandoned
  2. B R Obert Pit
    Surface metal/non-metal · Bruce R Obert & Sons LLC · MSHA ID 1700704
    Abandoned
  3. Browns Corner Pit
    Surface metal/non-metal · Frank L Woodworth Inc · MSHA ID 1700689
    Abandoned
  4. Bulmer Pit And Mill
    Surface metal/non-metal · Tilcon Warren Quarries Inc · MSHA ID 1700495
    Abandoned
  5. C641 PORTABLE CRUSHER
    Surface metal/non-metal · PIKE INDUSTRIES INC. · MSHA ID 1700758
    Abandoned
  6. Churchill Sand and Gravel
    Surface metal/non-metal · Churchill Sand and Gravel · MSHA ID 1700490
    Abandoned
  7. COLEMAN PORTABLE #1
    Surface metal/non-metal · Judkin Construction · MSHA ID 1700707
    Abandoned
  8. COLEMAN PORTABLE SCREEN
    Surface metal/non-metal · Thelma Lancaster Contractor · MSHA ID 1700634
    Abandoned
  9. DAVID I OBERT
    Surface metal/non-metal · DMO LANDSCAPING INC · MSHA ID 1700730
    Abandoned
  10. Day Pit
    Surface metal/non-metal · Stanley Ames LLC · MSHA ID 1700999
    Abandoned
  11. Fairfield Plant
    Surface metal/non-metal · Dragon Products Company · MSHA ID 1700120
    Abandoned
  12. FLEET SERVICES PORTABLE UNIT 35-001
    Surface metal/non-metal · Maine Department Of Transportation · MSHA ID 1700567
    Abandoned
  13. Harland Pit And Mill
    Surface metal/non-metal · Cianbro Corp · MSHA ID 1700139
    Abandoned
  14. Hawes Pit
    Surface metal/non-metal · Harolds Construction · MSHA ID 1700572
    Abandoned
  15. KOLMAN PORTABLE #1
    Surface metal/non-metal · Bemis Construction · MSHA ID 1700646
    Abandoned
  16. Kolman Screen
    Surface metal/non-metal · Town Of Oakland · MSHA ID 1700635
    Abandoned
  17. Langley Pit And Mill
    Surface metal/non-metal · Robert Langley · MSHA ID 1700525
    Abandoned
  18. LEXINGTON PIT
    Surface metal/non-metal · Woodpecker Logging, Inc. · MSHA ID 1700992
    Abandoned
  19. Madison Pit & Plant
    Surface metal/non-metal · Farrin Brothers & Smith Inc · MSHA ID 1700538
    Abandoned
  20. MAPLECREST SAND & GRAVEL
    Surface metal/non-metal · MAPLECREST SAND & GRAVEL · MSHA ID 1700632
    Abandoned
  21. Mckechnie Pit
    Surface metal/non-metal · Lewis Mckechnie · MSHA ID 1700439
    Abandoned
  22. Misery Pit And Mill
    Surface metal/non-metal · Tilcon Quarries Maine Inc · MSHA ID 1700549
    Abandoned
  23. Norridgewock Pit And Plant
    Surface metal/non-metal · Warren Brothers Company Inc · MSHA ID 1700317
    Abandoned
  24. Portable Crusher
    Surface metal/non-metal · Mattingly Products Co., Inc. · MSHA ID 1701015
    Abandoned
  25. Portable Crusher
    Surface metal/non-metal · Haley's Inc. · MSHA ID 1701144
    Abandoned
  26. PORTABLE CRUSHER
    Surface metal/non-metal · Cornville Construction Inc · MSHA ID 1700633
    Abandoned
  27. Portable Crusher C621
    Surface metal/non-metal · Pike Industries Inc · MSHA ID 1700443
    Abandoned
  28. PORTABLE SCREEN
    Surface metal/non-metal · Ames Mobile Home Sales · MSHA ID 1700555
    Abandoned
  29. Portable Screen #T55-713
    Surface metal/non-metal · Maine Department Of Transportation · MSHA ID 1700566
    Abandoned
  30. Portable Screen #T55-716
    Surface metal/non-metal · Maine Department Of Transportation · MSHA ID 1700568
    Abandoned
  31. RON FARRAND TRUCKING
    Surface metal/non-metal · RON FARRAND TRUCKING · MSHA ID 1700759
    Abandoned
  32. SMITHFIELD PIT
    Surface metal/non-metal · Donald J Gurney Inc · MSHA ID 1700124
    Abandoned
  33. Wilco Pit
    Surface metal/non-metal · Wilco Construction · MSHA ID 1700441
    Abandoned
  34. WITHAM PIT
    Surface metal/non-metal · MICHAEL E. WITHAM · MSHA ID 1700735
    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 230
Gravel Pit 201
Open Pit Mine or Quarry 8
Sand and Gravel Pit 8
Sand and Gravel Pit 5
Shale Pit 4
Shale Pit 4
Gravel/Borrow Pit - Undifferentiated 2
Quarry 1
Sand Pit 1
Quarry 1
Other counties in MaineAll 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.