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Abandoned mines › Maine
Abandoned mine inventory

Abandoned mines in Washington County, Maine

Washington County, Maine has 406 mine and prospect features on USGS topographic maps published 1902–1993. MSHA's register carries 23 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Washington 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)
406
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
23
0 features carry a name0 prospect pits59 quadrangle maps, published 1902–1993 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
    88 21.7%
  2. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    317 78.1%
  3. Dumps, tailings, spoil and gob
    what mining left above ground
    1 0.2%
MSHA-registered mines with status Abandoned23 on register
  1. Addison Black Quarry
    Surface metal/non-metal · Georgia Stone Management LLC · MSHA ID 1700747
    Abandoned
  2. Allen Pit
    Surface metal/non-metal · Warren L Davis · MSHA ID 1700386
    Abandoned
  3. Allen Pit
    Surface metal/non-metal · Mark Wright Construction · MSHA ID 1700919
    Abandoned
  4. Calais Plant
    Surface metal/non-metal · Lane Construction Corp · MSHA ID 1700276
    Abandoned
  5. Centerville Bog And Plant
    Surface metal/non-metal · Pioneer Peat Moss Company Inc · MSHA ID 1700311
    Abandoned
  6. Deblois Bog And Mill
    Surface metal/non-metal · Down East Peat Company · MSHA ID 1700451
    Abandoned
  7. East Machias Crusher
    Surface metal/non-metal · G E Goding & Son Inc · MSHA ID 1700243
    Abandoned
  8. Eastland Pit
    Surface metal/non-metal · Downeast Masonry · MSHA ID 1700842
    Abandoned
  9. Georgia Pacific Charlotte Pit
    Surface metal/non-metal · Thomas De Cenzo Inc · MSHA ID 1700387
    Abandoned
  10. James Pit And Mill
    Surface metal/non-metal · City Of Calais · MSHA ID 1700388
    Abandoned
  11. Jonesboro Englishmens Bay Quarry
    Surface metal/non-metal · Fletcher Granite Company Llc · MSHA ID 1700660
    Abandoned
  12. Jonesboro Quarry
    Surface metal/non-metal · Fletcher Granite Company Llc · MSHA ID 1700455
    Abandoned
  13. Jonesport Bog And Mill
    Surface metal/non-metal · International Peat Moss Company Inc · MSHA ID 1700053
    Abandoned
  14. Mcgeorge Pit
    Surface metal/non-metal · Maine Central Railroad Company · MSHA ID 1700167
    Abandoned
  15. Paradise Hill
    Surface metal/non-metal · Maleh Mah Inc. dba Morgan Construction · MSHA ID 1701184
    Abandoned
  16. Pembroke Pit
    Surface metal/non-metal · G E Goding & Son Inc · MSHA ID 1700824
    Abandoned
  17. PORABLE CRUSHER & SCREEN
    Surface metal/non-metal · G E Goding & Son Inc · MSHA ID 1700544
    Abandoned
  18. Porcupine Ledges
    Surface metal/non-metal · Freshwater Stone · MSHA ID 1700901
    Abandoned
  19. Portable Kolberg Screen
    Surface metal/non-metal · G E Goding & Son Inc · MSHA ID 1700526
    Abandoned
  20. Portable Plant
    Surface metal/non-metal · Hanscom Construction Inc · MSHA ID 1700390
    Abandoned
  21. PORTABLE PLANT
    Surface metal/non-metal · Thomas De Cenzo Inc · MSHA ID 1700321
    Abandoned
  22. Ramsdell Pit And Mill
    Surface metal/non-metal · Roland W Ramsdell · MSHA ID 1700497
    Abandoned
  23. Thomas Di Cenzo Charlotte Pit
    Surface metal/non-metal · Thomas Di Cenzo Inc · MSHA ID 1700822
    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 148
Gravel Pit 90
Disturbed Surface 67
Sand and Gravel Pit 40
Sand and Gravel Pit 26
Open Pit Mine or Quarry 21
Gravel/Borrow Pit - Undifferentiated 10
Sand Pit 2
Quarry 1
Mine Dump 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.