Abandoned mines in Windham County, Connecticut

1. 57 Brunswick Ave

   Surface metal/non-metal · Julian Development LLC · MSHA ID 0600777
   Abandoned 2017-03-01
2. 94 Sterling Rd Pit

   Surface metal/non-metal · Collelo Excavation · MSHA ID 0600781
   Abandoned 2014-06-12
3. ATLANTIC RECYCLING INC.

   Surface metal/non-metal · Atlantic Recycling Inc · MSHA ID 0600651
   Abandoned 1996-08-13
4. Bawza Stone LLC

   Surface metal/non-metal · Bawza Stone LLC · MSHA ID 0600732
   Abandoned 2009-03-18
5. Butts Bridge Road Gravel Bank

   Surface metal/non-metal · R & S Allyn Trucking · MSHA ID 0600610
   Abandoned 1986-01-09
6. Connecticut Flatstone Quarry

   Surface metal/non-metal · Connecticut Flatstone Company · MSHA ID 0600501
   Abandoned 1986-04-08
7. Corson Pit

   Surface metal/non-metal · M & R Trucking and Excavation LLC · MSHA ID 0600782
   Abandoned 2014-07-02
8. Extec #61

   Surface metal/non-metal · Bellavance Trucking & Exc · MSHA ID 0600706
   Abandoned 2012-11-19
9. Fab Tec

   Surface metal/non-metal · Tilcon · MSHA ID 0600715
   Abandoned 2009-01-09
10. GARVEY SAND & GRAVEL, INC.

    Surface metal/non-metal · Garvey Sand & Gravel Inc · MSHA ID 0600444
    Abandoned 1998-07-20
11. Hart'S Pit And Plant

    Surface metal/non-metal · Canton Village Construction Inc · MSHA ID 0600590
    Abandoned 1981-08-06
12. Haynes Aggregates-Sterling LLC

    Surface metal/non-metal · Haynes Materials Company · MSHA ID 0600703
    Abandoned 2011-04-06
13. Hughes Quarry

    Surface metal/non-metal · Arthur L Hughes · MSHA ID 0600502
    Abandoned 1991-11-04
14. Janeczek Pit

    Surface metal/non-metal · J W Janeczek General Contractors · MSHA ID 0600451
    Abandoned 1979-12-14
15. Kappys Gravel Pit And Plant

    Surface metal/non-metal · Kappys Gravel · MSHA ID 0600449
    Abandoned 1979-12-14
16. KING TRUCKING CO. INC.

    Surface metal/non-metal · King Trucking Company Inc · MSHA ID 0600424
    Abandoned 2004-03-04
17. Knight & Sons Construction, Corp.

    Surface metal/non-metal · Knight & Sons Construction, Corp. · MSHA ID 0600743
    Abandoned 2013-05-01
18. Kolberg Screener #66

    Surface metal/non-metal · Bellavance Trucking & Exc · MSHA ID 0600707
    Abandoned 2009-06-09
19. Latham Pit And Plant

    Surface metal/non-metal · William H Latham · MSHA ID 0600467
    Abandoned 1979-12-14
20. Miller Brothers Moving & Storage

    Surface metal/non-metal · Miller Brothers Moving & Storage · MSHA ID 0600601
    Abandoned 1986-08-15
21. MILLER ROAD PIT

    Surface metal/non-metal · Ri-Che · MSHA ID 0600667
    Abandoned 2001-07-25
22. Niemann Farm Gravel

    Surface metal/non-metal · Niemann Farm Gravel · MSHA ID 0600614
    Abandoned 1995-09-18
23. Northeast Sand & Gravel Products LLC

    Surface metal/non-metal · Northeast Sand & Gravel Products LLC · MSHA ID 0600819
    Abandoned 2022-05-19
24. Pit 1 Plainfield Pike

    Surface metal/non-metal · Plainfield Materials, LLC · MSHA ID 0600818
    Abandoned 2023-08-16
25. Plant #3 - Rukstela Road, Brooklyn

    Surface metal/non-metal · Rawson Materials, Inc. · MSHA ID 0600757
    Abandoned 2012-03-08
26. PLANT 3

    Surface metal/non-metal · RAWSON MATERIALS · MSHA ID 0600629
    Abandoned 2005-02-17
27. Portable #62

    Surface metal/non-metal · Bellavance Trucking & Exc · MSHA ID 0600701
    Abandoned 2006-08-01
28. PORTABLE UNIT #1

    Surface metal/non-metal · Patriot Hauling · MSHA ID 0600693
    Abandoned 2003-05-05
29. Power Screen Warrior

    Surface metal/non-metal · Tilcon Connecticut, Inc. · MSHA ID 0600723
    Abandoned 2009-01-09
30. R B Marriott And Sons

    Surface metal/non-metal · R B Marriott & Sons · MSHA ID 0600010
    Abandoned 1987-08-04
31. Rawson Materials Plant #10

    Surface metal/non-metal · Rawson Materials · MSHA ID 0600632
    Abandoned 2025-03-04
32. Riverview Enterprises

    Surface metal/non-metal · DWC Crushing LLC · MSHA ID 0600674
    Abandoned 2009-12-20
33. Route 205 Plant And Pit

    Surface metal/non-metal · Clifford B Green & Sons Inc · MSHA ID 0600591
    Abandoned 1984-08-22
34. Screening Plant

    Surface metal/non-metal · Kasper Construction · MSHA ID 0600628
    Abandoned 1991-07-29
35. Snake Meadow Pit

    Surface metal/non-metal · J R Vinagro Corporation · MSHA ID 0600641
    Abandoned 2010-06-06
36. South Windham Pit & Plant

    Surface metal/non-metal · South Windham Sand & Gravel Company · MSHA ID 0600419
    Abandoned 1978-10-10
37. STERLING PIT

    Surface metal/non-metal · Richmond Sand & Gravel Inc · MSHA ID 0600691
    Abandoned 2002-01-01
38. Sterling Stone Quarry

    Surface metal/non-metal · Charles J Precourt & Son Inc · MSHA ID 0600649
    Abandoned 2012-06-11
39. Strouse Brothers Quarry

    Surface metal/non-metal · Strouse Brothers · MSHA ID 0600008
    Abandoned 1979-12-14
40. Wauregan Quarry

    Surface metal/non-metal · Tilcon Connecticut Inc · MSHA ID 0600015
    Abandoned 2024-07-03

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
• New London 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.