Abandoned mines in Windham County, Connecticut
Windham County, Connecticut has no mine or prospect features in the USGS topographic-map compilation. MSHA's register carries 40 mines in the county with status Abandoned or Abandoned and Sealed.
Every mine and prospect feature the USGS digitized from historical topographic maps covering Windham 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)
- 0
- Mine openings
- 0
- OSMRE problems unreclaimed
- 0
- MSHA mines marked abandoned
- 40
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57 Brunswick AveAbandoned 2017-03-01Surface metal/non-metal · Julian Development LLC · MSHA ID 0600777
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94 Sterling Rd PitAbandoned 2014-06-12Surface metal/non-metal · Collelo Excavation · MSHA ID 0600781
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ATLANTIC RECYCLING INC.Abandoned 1996-08-13Surface metal/non-metal · Atlantic Recycling Inc · MSHA ID 0600651
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Bawza Stone LLCAbandoned 2009-03-18Surface metal/non-metal · Bawza Stone LLC · MSHA ID 0600732
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Butts Bridge Road Gravel BankAbandoned 1986-01-09Surface metal/non-metal · R & S Allyn Trucking · MSHA ID 0600610
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Connecticut Flatstone QuarryAbandoned 1986-04-08Surface metal/non-metal · Connecticut Flatstone Company · MSHA ID 0600501
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Corson PitAbandoned 2014-07-02Surface metal/non-metal · M & R Trucking and Excavation LLC · MSHA ID 0600782
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Extec #61Abandoned 2012-11-19Surface metal/non-metal · Bellavance Trucking & Exc · MSHA ID 0600706
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Fab TecAbandoned 2009-01-09Surface metal/non-metal · Tilcon · MSHA ID 0600715
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GARVEY SAND & GRAVEL, INC.Abandoned 1998-07-20Surface metal/non-metal · Garvey Sand & Gravel Inc · MSHA ID 0600444
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Hart'S Pit And PlantAbandoned 1981-08-06Surface metal/non-metal · Canton Village Construction Inc · MSHA ID 0600590
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Haynes Aggregates-Sterling LLCAbandoned 2011-04-06Surface metal/non-metal · Haynes Materials Company · MSHA ID 0600703
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Hughes QuarryAbandoned 1991-11-04Surface metal/non-metal · Arthur L Hughes · MSHA ID 0600502
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Janeczek PitAbandoned 1979-12-14Surface metal/non-metal · J W Janeczek General Contractors · MSHA ID 0600451
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Kappys Gravel Pit And PlantAbandoned 1979-12-14Surface metal/non-metal · Kappys Gravel · MSHA ID 0600449
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KING TRUCKING CO. INC.Abandoned 2004-03-04Surface metal/non-metal · King Trucking Company Inc · MSHA ID 0600424
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Knight & Sons Construction, Corp.Abandoned 2013-05-01Surface metal/non-metal · Knight & Sons Construction, Corp. · MSHA ID 0600743
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Kolberg Screener #66Abandoned 2009-06-09Surface metal/non-metal · Bellavance Trucking & Exc · MSHA ID 0600707
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Latham Pit And PlantAbandoned 1979-12-14Surface metal/non-metal · William H Latham · MSHA ID 0600467
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Miller Brothers Moving & StorageAbandoned 1986-08-15Surface metal/non-metal · Miller Brothers Moving & Storage · MSHA ID 0600601
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MILLER ROAD PITAbandoned 2001-07-25Surface metal/non-metal · Ri-Che · MSHA ID 0600667
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Niemann Farm GravelAbandoned 1995-09-18Surface metal/non-metal · Niemann Farm Gravel · MSHA ID 0600614
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Northeast Sand & Gravel Products LLCAbandoned 2022-05-19Surface metal/non-metal · Northeast Sand & Gravel Products LLC · MSHA ID 0600819
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Pit 1 Plainfield PikeAbandoned 2023-08-16Surface metal/non-metal · Plainfield Materials, LLC · MSHA ID 0600818
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Plant #3 - Rukstela Road, BrooklynAbandoned 2012-03-08Surface metal/non-metal · Rawson Materials, Inc. · MSHA ID 0600757
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PLANT 3Abandoned 2005-02-17Surface metal/non-metal · RAWSON MATERIALS · MSHA ID 0600629
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Portable #62Abandoned 2006-08-01Surface metal/non-metal · Bellavance Trucking & Exc · MSHA ID 0600701
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PORTABLE UNIT #1Abandoned 2003-05-05Surface metal/non-metal · Patriot Hauling · MSHA ID 0600693
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Power Screen WarriorAbandoned 2009-01-09Surface metal/non-metal · Tilcon Connecticut, Inc. · MSHA ID 0600723
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R B Marriott And SonsAbandoned 1987-08-04Surface metal/non-metal · R B Marriott & Sons · MSHA ID 0600010
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Rawson Materials Plant #10Abandoned 2025-03-04Surface metal/non-metal · Rawson Materials · MSHA ID 0600632
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Riverview EnterprisesAbandoned 2009-12-20Surface metal/non-metal · DWC Crushing LLC · MSHA ID 0600674
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Route 205 Plant And PitAbandoned 1984-08-22Surface metal/non-metal · Clifford B Green & Sons Inc · MSHA ID 0600591
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Screening PlantAbandoned 1991-07-29Surface metal/non-metal · Kasper Construction · MSHA ID 0600628
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Snake Meadow PitAbandoned 2010-06-06Surface metal/non-metal · J R Vinagro Corporation · MSHA ID 0600641
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South Windham Pit & PlantAbandoned 1978-10-10Surface metal/non-metal · South Windham Sand & Gravel Company · MSHA ID 0600419
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STERLING PITAbandoned 2002-01-01Surface metal/non-metal · Richmond Sand & Gravel Inc · MSHA ID 0600691
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Sterling Stone QuarryAbandoned 2012-06-11Surface metal/non-metal · Charles J Precourt & Son Inc · MSHA ID 0600649
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Strouse Brothers QuarryAbandoned 1979-12-14Surface metal/non-metal · Strouse Brothers · MSHA ID 0600008
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Wauregan QuarryAbandoned 2024-07-03Surface metal/non-metal · Tilcon Connecticut Inc · MSHA ID 0600015
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
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.
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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.
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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.
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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.
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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.
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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.
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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.
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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).
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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.