Abandoned mines in New Haven County, Connecticut

1. Bart Lo Russo & Sons Inc

   Surface metal/non-metal · Bart Lo Russo & Sons Inc · MSHA ID 0600618
   Abandoned 2019-05-22
2. Beacon Falls Wash Plant #2

   Surface metal/non-metal · O & G Industries Inc · MSHA ID 0600367
   Abandoned 2015-10-01
3. Blue Rock Portable

   Surface metal/non-metal · Blue Rock Construction LLC · MSHA ID 0600655
   Abandoned 2015-08-31
4. BLUESTONE QUARRY

   Surface metal/non-metal · Hychko Construction Company · MSHA ID 0600634
   Abandoned 2010-02-23
5. C & C Pit & Plant

   Surface metal/non-metal · C & C Materials Inc · MSHA ID 0600581
   Abandoned 1981-08-06
6. C & S Stone

   Surface metal/non-metal · C & S Stone · MSHA ID 0600638
   Abandoned 1995-11-07
7. CALABRESE CONTRACTING CO., INC.

   Surface metal/non-metal · Calabrese Construction Company Inc · MSHA ID 0600617
   Abandoned 1997-12-03
8. Capital Heavy Hauling LLC

   Surface metal/non-metal · Capital Heavy Hauling LLC · MSHA ID 0600762
   Abandoned 2019-06-28
9. CEDARAPIDS 1

   Surface metal/non-metal · Sweeney Excavation Inc · MSHA ID 0600666
   Abandoned 2006-02-17
10. Cheshire North Haven Pit & Plant

    Surface metal/non-metal · Valley Sand & Gravel Corp · MSHA ID 0600577
    Abandoned 1980-04-10
11. Cheshire Pit

    Surface metal/non-metal · Oleski Construction Inc · MSHA ID 0600574
    Abandoned 1979-01-19
12. County Wide Construction Cheshire

    Surface metal/non-metal · County Wide Construction · MSHA ID 0600619
    Abandoned 1990-08-15
13. County Wide Construction Southington

    Surface metal/non-metal · County Wide Construction · MSHA ID 0600620
    Abandoned 1989-06-14
14. D And J Quarry

    Surface metal/non-metal · D & J Quarry Products Inc · MSHA ID 0600587
    Abandoned 1995-04-03
15. Derby Sand And Gravel Company

    Surface metal/non-metal · A W Beard Construction Corp · MSHA ID 0600376
    Abandoned 1985-08-23
16. Downs Pit And Mill

    Surface metal/non-metal · Frank H Downs · MSHA ID 0600344
    Abandoned 1980-06-20
17. East Haven Trap Rock Quarry LLC

    Surface metal/non-metal · East Haven Trap Rock Quarry LLC · MSHA ID 0600779
    Abandoned 2024-08-13
18. Falls Road Pit & Plant

    Surface metal/non-metal · Roma Construction Company · MSHA ID 0600565
    Abandoned 1980-05-06
19. Finco Mine & Mill

    Surface metal/non-metal · Finco Corp · MSHA ID 0600244
    Abandoned 1981-06-03
20. Fountain Lakes Quarry

    Surface metal/non-metal · RD Scinto, Inc. · MSHA ID 0600788
    Abandoned 2016-05-25
21. G W MATON MATERIALS

    Surface metal/non-metal · Greg Maton · MSHA ID 0600684
    Abandoned 2002-07-31
22. H S G

    Surface metal/non-metal · H S G Inc · MSHA ID 0600657
    Abandoned 1999-12-28
23. H. J. KELLY ASSC., INC.

    Surface metal/non-metal · H J Kelly Associates Inc · MSHA ID 0600640
    Abandoned 1997-03-01
24. Hamden Mill

    Facility metal/non-metal · Farnham Crushed Stone Inc · MSHA ID 0600007
    Abandoned 1986-07-24
25. Hamden Sand And Gravel

    Surface metal/non-metal · Hamden Sand & Gravel Company · MSHA ID 0600227
    Abandoned 1990-10-17
26. Haynes Aggregates - Naugatuck, LLC

    Surface metal/non-metal · Haynes Materials Company · MSHA ID 0600555
    Abandoned 2015-09-14
27. Jackson St.

    Surface metal/non-metal · Metcalf Paving Inc. · MSHA ID 0600685
    Abandoned 2002-10-21
28. Kettletown Road Pit

    Surface metal/non-metal · Kettletown Road Sand & Gravel Company · MSHA ID 0600558
    Abandoned 1982-05-21
29. KPI-JCI K300+6203CC(SC26)

    Surface metal/non-metal · CHERRY HILL CONSTRUCTION INC · MSHA ID 0600834
    Abandoned 2025-05-08
30. LOKOTRACK #1

    Surface metal/non-metal · BART LORUSSO & SONS INC · MSHA ID 0600709
    Abandoned 2013-05-01
31. LoRusso & Sons, Inc.

    Surface metal/non-metal · Bart LoRusso & Sons, Inc. · MSHA ID 0600740
    Abandoned 2008-04-02
32. McCloskey R105(SC25)S/N-70845

    Surface metal/non-metal · Cherry Hill Construction Inc · MSHA ID 0600756
    Abandoned 2026-07-09
33. McCloskey R155(SC24)S/N-70718

    Surface metal/non-metal · Cherry Hill Construction Inc · MSHA ID 0600692
    Abandoned 2024-08-15
34. MCCLOSKEY R155(SC40)S/N-82130

    Surface metal/non-metal · CHERRY HILL CONSTRUCTION INC · MSHA ID 0600833
    Abandoned 2025-05-08
35. Mesa Pit/Plant

    Surface metal/non-metal · Mesa Construction Co Inc · MSHA ID 0600566
    Abandoned 1991-09-18
36. Metso HP200(SC21)S/N-76995

    Surface metal/non-metal · Cherry Hill Construction Company Inc · MSHA ID 0600755
    Abandoned 2026-07-09
37. Metso HP300(SC19)S/N-72775

    Surface metal/non-metal · Cherry Hill Construction Inc · MSHA ID 0600753
    Abandoned 2026-07-09
38. Metso LT106(SC22)S/N-77205

    Surface metal/non-metal · Cherry Hill Construction Company Inc · MSHA ID 0600754
    Abandoned 2026-07-09
39. METSO LT106(SC33)S/N-78420

    Surface metal/non-metal · CHERRY HILL CONSTRUCTION INC · MSHA ID 0600832
    Abandoned 2025-05-08
40. METSO LT106(SC34)S/N-78238

    Surface metal/non-metal · CHERRY HILL CONSTRUCTION INC · MSHA ID 0600831
    Abandoned 2025-05-08
41. Mitchell Pit

    Surface metal/non-metal · Gokey Sand & Gravel Company · MSHA ID 0600548
    Abandoned 1982-05-21
42. MOLSICK PIT & PLANT

    Surface metal/non-metal · Molsick Sand & Gravel Inc · MSHA ID 0600569
    Abandoned 2001-05-10
43. Neubig Robert Portable #1

    Surface metal/non-metal · Neuco Corp · MSHA ID 0600787
    Abandoned 2016-04-25
44. NEW HAVEN PLANT

    Surface metal/non-metal · Mls Construction Llc · MSHA ID 0600646
    Abandoned 1999-08-06
45. Nickelmine Brook Associates

    Surface metal/non-metal · Nickelmine Brook Associates · MSHA ID 0600621
    Abandoned 1990-10-17
46. Northford Pit & Plant

    Surface metal/non-metal · Northford Trucking & Excavating Inc · MSHA ID 0600567
    Abandoned 1984-07-03
47. Oak Ledge Properties LLC

    Surface metal/non-metal · Northeast Site Development LLC · MSHA ID 0600712
    Abandoned 2011-11-11
48. ORONOQUE PIT AND MILL

    Surface metal/non-metal · Beard Sand & Gravel Company Inc · MSHA ID 0600201
    Abandoned 2002-07-23
49. Oxbury LLC

    Surface metal/non-metal · Oxbury LLC · MSHA ID 0600771
    Abandoned 2012-08-28
50. Oxford Town Center LLC

    Surface metal/non-metal · Haynes Materials Company · MSHA ID 0600681
    Abandoned 2020-08-19
51. Portable Crusher

    Surface metal/non-metal · Blakeman Construction LLC · MSHA ID 0600749
    Abandoned 2010-09-14
52. PORTABLE UNIT

    Surface metal/non-metal · Empire Paving Inc · MSHA ID 0600630
    Abandoned 2001-02-16
53. RICE PIT

    Surface metal/non-metal · Thomas Keegan & Sons Inc · MSHA ID 0600226
    Abandoned 2024-04-10
54. Rimmon Road Pit

    Surface metal/non-metal · D & J Construction Company Inc · MSHA ID 0600241
    Abandoned 1980-10-24
55. Riverview

    Surface metal/non-metal · LARS Realty LLC · MSHA ID 0600759
    Abandoned 2012-02-14
56. Sanitary Land Fill

    Surface metal/non-metal · Town Of Cheshire · MSHA ID 0600556
    Abandoned 1982-05-21
57. SC 8 Cedar Rapids

    Surface metal/non-metal · Cherry Hill Construction Co. Inc · MSHA ID 0600809
    Abandoned 2024-07-05
58. Scinto Portable Plant One

    Surface metal/non-metal · R D Scinto · MSHA ID 0600784
    Abandoned 2022-10-03
59. SECONDARY PLANT

    Surface metal/non-metal · Cocchiola Paving Inc · MSHA ID 0600686
    Abandoned 2002-06-26
60. SEYMOUR CT

    Surface metal/non-metal · BOVE BROTHERS LLC · MSHA ID 0600849
    Abandoned 2025-12-09
61. SEYMOUR PIT

    Surface metal/non-metal · Ed Mc Manus & Sons Construction Company Inc · MSHA ID 0600679
    Abandoned 2002-06-25
62. Seymour Pit & Plant

    Surface metal/non-metal · Town Of Seymour · MSHA ID 0600568
    Abandoned 1982-05-21
63. TOELLES RD. SAND AND GRAVEL

    Surface metal/non-metal · Toelles Road Sand & Gravel Company · MSHA ID 0600616
    Abandoned 1998-10-01
64. VALLEY SAND & GRAVEL CORP.

    Facility metal/non-metal · Valley Sand & Gravel Corp · MSHA ID 0600342
    Abandoned 2003-12-01
65. Waterbury Rock Incorporated

    Surface metal/non-metal · Waterbury Rock Inc · MSHA ID 0600210
    Abandoned 1992-09-02
66. Watertown Ave

    Surface metal/non-metal · LARS Realty LLC · MSHA ID 0600758
    Abandoned 2021-02-08
67. Wheeler Pit

    Surface metal/non-metal · Melvin S Wheeler Inc · MSHA ID 0600546
    Abandoned 1982-05-21

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
• Hartford County 0
• New London 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.