Abandoned mines in New London County, Connecticut

1. 1502 Route 85

   Surface metal/non-metal · Daniels and Sons Construction LLC · MSHA ID 0600845
   Abandoned 2024-12-05
2. B And O Pit And Mill

   Surface metal/non-metal · B & O Sand & Gravel · MSHA ID 0600391
   Abandoned 1987-06-16
3. B&R Sand and Gravel

   Surface metal/non-metal · B&R Holding Company, LLC. · MSHA ID 0600804
   Abandoned 2019-06-24
4. BAY MOUNTAIN

   Surface metal/non-metal · Bay Mountain Contracting Inc · MSHA ID 0600672
   Abandoned 2001-10-09
5. Bison Brook Farms

   Surface metal/non-metal · Bison Brook Farms · MSHA ID 0600741
   Abandoned 2024-12-05
6. Chesterfield Road Pit

   Surface metal/non-metal · City Of New London-Div Of Highways · MSHA ID 0600504
   Abandoned 1979-12-20
7. Deep River (Haynes)

   Surface metal/non-metal · Bove Brothers LLC · MSHA ID 0600846
   Abandoned 2025-11-10
8. Dunning South

   Surface metal/non-metal · Dunning Industries Inc · MSHA ID 0600767
   Abandoned 2014-05-27
9. Edmond'S Pit

   Surface metal/non-metal · Atlas Paving Company Inc · MSHA ID 0600608
   Abandoned 1986-07-16
10. Geer Pit And Mill

    Surface metal/non-metal · Geer Sand & Gravel Company Inc · MSHA ID 0600397
    Abandoned 1991-09-17
11. Getty Granite Montville

    Surface metal/non-metal · CT Superior Stone · MSHA ID 0600816
    Abandoned 2026-03-16
12. GRISWOLD/165 PIT

    Surface metal/non-metal · Mashantucket Pequot Tribe · MSHA ID 0600645
    Abandoned 1997-05-16
13. Groton Plant

    Surface metal/non-metal · Tilcon Connecticut Inc · MSHA ID 0600680
    Abandoned 2001-09-28
14. Groton Reservoir Dredge

    Surface metal/non-metal · Town Of Groton · MSHA ID 0600388
    Abandoned 1991-04-24
15. Groton Reservoir Dredge

    Surface metal/non-metal · City Of Groton Highway Department · MSHA ID 0600507
    Abandoned 1986-07-15
16. Groton Reservoir Dredge And Plant

    Surface metal/non-metal · New London Sand & Gravel Company Inc · MSHA ID 0600246
    Abandoned 1981-07-17
17. Groton Reservoir Pit And Plant

    Surface metal/non-metal · New London Sand & Gravel Company Inc · MSHA ID 0600384
    Abandoned 1978-05-18
18. Hewitt'S Dredge

    Surface metal/non-metal · Austin Hewitt & Son'S Inc · MSHA ID 0600585
    Abandoned 1986-05-01
19. HOPEVILLE SAND & GRAVEL

    Surface metal/non-metal · Neri Sand & Gravel Inc · MSHA ID 0600675
    Abandoned 2001-05-04
20. J V Pit

    Surface metal/non-metal · Jeff Vullo Trucking & Excavating Inc · MSHA ID 0600637
    Abandoned 1992-02-06
21. Janowicz Pit

    Surface metal/non-metal · Janowicz Sand & Gravel Company · MSHA ID 0600398
    Abandoned 1986-01-08
22. Johnson Sand & Gravel

    Surface metal/non-metal · Tri-J Inc-Johnson Sand & Gravel Div · MSHA ID 0600258
    Abandoned 1986-01-07
23. K5 Aggregates Inc

    Surface metal/non-metal · K5 Aggregates Inc · MSHA ID 0600167
    Abandoned 2012-02-15
24. Kurt Barnes

    Surface metal/non-metal · Kurt Barnes · MSHA ID 0600766
    Abandoned 2017-08-30
25. Ledyard Pit And Plant

    Facility metal/non-metal · Soneco Service Inc · MSHA ID 0600323
    Abandoned 1986-03-04
26. Ledyard Plant

    Surface metal/non-metal · U S Silica Company · MSHA ID 0600018
    Abandoned 1994-06-01
27. Lewis Farm

    Surface metal/non-metal · Peter J Hock · MSHA ID 0600780
    Abandoned 2018-07-18
28. Lewis Pit And Mill

    Surface metal/non-metal · Greenman Sand & Gravel Company · MSHA ID 0600389
    Abandoned 1978-11-08
29. MARK A. MOORE

    Surface metal/non-metal · Mark A Moore · MSHA ID 0600652
    Abandoned 1999-08-10
30. Miller Pit And Mill

    Surface metal/non-metal · Carlton Miller Sand & Gravel · MSHA ID 0600395
    Abandoned 1978-11-16
31. Montville Pit

    Surface metal/non-metal · Kobyluck Sand & Gravel Inc · MSHA ID 0600588
    Abandoned 2010-12-06
32. Montville Plant

    Surface metal/non-metal · Tilcon Connecticut Inc · MSHA ID 0600677
    Abandoned 2009-01-09
33. Montville Quarry

    Surface metal/non-metal · Hubert E Butler Construction Co, LLC · MSHA ID 0600813
    Abandoned 2023-02-28
34. Moran Sand And Gravel Pit And Plant

    Surface metal/non-metal · Moran Sand & Gravel · MSHA ID 0600377
    Abandoned 1985-11-20
35. Morgan Pit

    Surface metal/non-metal · James Romanella & Sons Inc · MSHA ID 0600498
    Abandoned 1978-10-25
36. North Stonington Gravel Pit

    Surface metal/non-metal · Cherenzia & Nigrelli Inc · MSHA ID 0600390
    Abandoned 1978-10-26
37. Oakwood Farm

    Surface metal/non-metal · Oakwood Farm · MSHA ID 0600742
    Abandoned 2010-05-11
38. Old Hartford Road Pit And Plant

    Surface metal/non-metal · Leo Fedus & Sons Construction Company Inc · MSHA ID 0600611
    Abandoned 1993-09-08
39. OUS CONST.

    Surface metal/non-metal · OUS CONST. · MSHA ID 0600704
    Abandoned 2003-08-06
40. PEGSON

    Surface metal/non-metal · American Industries · MSHA ID 0600720
    Abandoned 2014-09-10
41. Pit #1

    Surface metal/non-metal · Moran Sand & Gravel · MSHA ID 0600599
    Abandoned 1991-09-17
42. Portable Crusher

    Surface metal/non-metal · Nutmeg Gravel & Excavating Inc · MSHA ID 0600724
    Abandoned 2011-03-16
43. Portable Screen

    Surface metal/non-metal · Coit Excavating Inc · MSHA ID 0600795
    Abandoned 2023-04-27
44. PRZEKOPSKI SAND & GRAVEL & FARM

    Surface metal/non-metal · Przekopski Sand Gravel & Farm · MSHA ID 0600647
    Abandoned 2009-08-10
45. Rattlesnake Quarry

    Surface metal/non-metal · Hillcraft Company · MSHA ID 0600386
    Abandoned 1978-05-16
46. Richard E White Pit And Mill

    Surface metal/non-metal · Richard E White · MSHA ID 0600380
    Abandoned 1991-05-13
47. Route 138 Pit

    Surface metal/non-metal · Federal Paper Board Company Inc · MSHA ID 0600600
    Abandoned 1986-01-08
48. SALEM EARTH PRODUCTS, INC.

    Surface metal/non-metal · Salem Earth Products Inc · MSHA ID 0600625
    Abandoned 2003-02-27
49. SDB Trucking LLC

    Surface metal/non-metal · SDB Trucking LLC · MSHA ID 0600738
    Abandoned 2011-03-23
50. Sprague Pit And Mill

    Surface metal/non-metal · Sprague Sand & Gravel Company · MSHA ID 0600396
    Abandoned 1987-07-15
51. Stillman Road Pit And Mill

    Surface metal/non-metal · James Romanella & Sons Inc · MSHA ID 0600322
    Abandoned 1978-10-25
52. Uncasville Plant And Leffingwell Pit

    Surface metal/non-metal · John J Doyle Sand & Gravel Company Inc · MSHA ID 0600233
    Abandoned 1980-11-14
53. Waterford Pit

    Surface metal/non-metal · Rudy Fogg & Sons Inc · MSHA ID 0600589
    Abandoned 1981-12-23
54. Westerly Plant

    Surface metal/non-metal · Westerly Ready Mixed Concrete Co In · MSHA ID 0600260
    Abandoned 1979-07-09
55. Wilkenson Pit

    Facility metal/non-metal · James Romanella & Sons Inc · MSHA ID 0600321
    Abandoned 1994-07-29
56. Willow Springs Pit

    Surface metal/non-metal · Whittle Brothers Farm · MSHA ID 0600261
    Abandoned 1987-02-12
57. Woodco Properties

    Surface metal/non-metal · Woodco Properties LLC · MSHA ID 0600838
    Abandoned 2024-12-05
58. Yurechko Pit And Mill

    Surface metal/non-metal · G & Y Inc · MSHA ID 0600417
    Abandoned 1978-11-15

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

• Capitol Planning Region County 304
• Southeastern Connecticut Planning Region County 268
• Naugatuck Valley Planning Region County 194
• Lower Connecticut River Valley Planning Region County 173
• South Central Connecticut Planning Region County 125
• Western Connecticut Planning Region County 120
• Northwest Hills Planning Region County 100
• Northeastern Connecticut Planning Region County 87
• Greater Bridgeport Planning Region County 28
• New Haven County 0
• Hartford County 0
• Fairfield County 0

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.