Old mine workings, the emergency

If the ground moves

A hole, a shaft or a sudden sag over an old working. Who to call first, in what order, and what to do at the edge while you wait.

Information only, no guarantee. Checked October 29, 2026. The limits are in the Disclaimer section at the foot.

Danger

Call 911 first when any of this is true

A person, a child or an animal has fallen in, or could fall in before help arrives. A hole has opened in a road, a sidewalk, a school yard or anywhere the public walks or drives. A building is moving or cracking fast, or its gas or water line has broken. You smell gas, or smoke or steam is coming out of the ground, which can mean a fire in the old workings. Anyone has gone into an opening.

Keep everyone and every vehicle well back from the edge. A subsidence hole widens, and the ground around it is already undermined. The air in an old working can kill in a minute, and rescue is for trained teams with breathing equipment. The federal mine safety agency says it in the three words of its Stay Out, Stay Alive campaign.

In order

Who to call, in what order

Do and do not

What to do at the opening while you wait

Do thisWhy
Keep back from the edgeThe ground around a subsidence hole is already undermined and the edge is the next thing to go
Keep dogs and children awayAn animal that goes in cannot be followed
Do not enter, even a few feetOld workings hold air with no oxygen and gases you cannot smell; people die in the first minute
Do not fill it yetThe state program needs to see it, and fill goes down with the next collapse
Photograph it with something for scaleA tape, a shovel or a person at a safe distance
Write down the date and the timeThe insurer and the engineer both ask when it began
Measure it and keep measuringHow fast it grows is the first engineering question
Shut off the gas if the line may be involved and you know howOtherwise leave it to the utility, from outside the house

The warnings

Signs worth reporting before anything opens

SignWhat it usually means
Doors and windows that stop closingThe frame is moving with the ground
New cracks running at an angle across a wallSettlement cracks run straight; subsidence cracks run diagonally
A floor, a drive or a lawn that dipsThe sag of a room collapsing below, often before any hole
A sudden wet patch, or a well that goes dryWater finding a new way down into the workings
Orange or rust colored water running out of the groundDrainage from old workings, a sign they are near
Warm ground, snow that melts first in one place, a smell of sulfurA fire in the old workings on coal ground
A round dip in a field with no other causeAn old shaft whose cap has begun to fail

All 52

The office to call in each state

StateOfficeNumber or what the page says
AlabamaAlabama Department of Labor, Abandoned Mine Land ReclamationThrough the Department of Labor inspections division
AlaskaAlaska DNR Division of Mining, Land and Water, Abandoned Mine LandsDivision of Mining, Land and Water, for historic mines of any type
ArizonaArizona State Mine Inspector, Abandoned MinesThe State Mine Inspector inventories and secures abandoned openings
ArkansasArkansas DEQ Coal Program (abandoned coal mine reclamation)Main office in Fort Smith
CaliforniaCalifornia Department of Conservation, Abandoned Mine Lands UnitThe unit covers abandoned mines in all 58 counties, about two thirds of them on federal land
ColoradoDRMS Inactive Mine Reclamation ProgramSubsidence emergency line 1-800-44MINES or 303-866-3567
ConnecticutNo state abandoned mine land program; tell your town emergency management directorConnecticut Geological Survey (DEEP), Connecticut Bedrock Mining Sites Database is the state page on its old workings
DelawareNo state abandoned mine land program; tell your county emergency management officeDelaware Geological Survey is the state page on its old workings
District of ColumbiaNo state abandoned mine land program; tell the District emergency management agencyNo state survey page on mines either; the federal offices below hold the records
FloridaNo state abandoned mine land program; tell your county emergency management officeFlorida DEP Mining and Mitigation Program is the state page on its old workings
GeorgiaNo state abandoned mine land program; tell your county emergency management officeGeorgia EPD Surface Mining and Georgia Geologic Survey maps is the state page on its old workings
HawaiiNo state abandoned mine land program; tell your county emergency management officeNo state survey page on mines either; the federal offices below hold the records
IdahoIdaho Department of Lands, Abandoned Mine LandsLocation questions go to the nearest Department of Lands supervisory area
IllinoisIllinois DNR Abandoned Mine Lands Reclamation DivisionOne Natural Resources Way, Springfield
IndianaDNR Division of Reclamation, Abandoned Mine Problems812-665-2207, or AbandonedMinesRestoration@dnr.IN.gov
IowaIowa Department of Agriculture and Land Stewardship, Abandoned Mine Land ReclamationMines and Minerals Bureau, mostly southeast Iowa coal
KansasKDHE Abandoned Mine Land ProgramThe program runs a separate emergency program for sudden hazards
KentuckyDivision of Abandoned Mine Lands, regional offices and emergency contactEmergency line 1 (877) 495-9552 where life or property is in danger
LouisianaNo state abandoned mine land program; tell your parish office of homeland security and emergency preparednessLouisiana Geological Survey (LSU) is the state page on its old workings
MaineNo state abandoned mine land program; tell your county emergency management officeMaine Geological Survey, Maine Mineral Resources database and map is the state page on its old workings
MarylandMDE Abandoned Mine Lands DivisionAllegany and Garrett Counties, the only coal counties
MassachusettsNo state abandoned mine land program; tell your town or city emergency management officeMassachusetts Geological Survey, Mineral Resources is the state page on its old workings
MichiganNo state abandoned mine land program; tell your county emergency management officeEGLE GeoWebFace is the state page on its old workings
MinnesotaNo state abandoned mine land program; tell your county emergency management officeMinnesota DNR Underground Mine Mapping Project is the state page on its old workings
MississippiNo state abandoned mine land program; tell your county emergency management officeMDEQ Office of Geology, Mining and Reclamation Division is the state page on its old workings
MissouriMissouri DNR Land Reclamation Program, Abandoned Mine Lands (PUB2066)Land Reclamation Program, coal mine land abandoned before 1977
MontanaMontana DEQ Abandoned Mine LandsProject manager numbers on the page, 406 444-6458 among them
NebraskaNo state abandoned mine land program; tell your county emergency management officeConservation and Survey Division, University of Nebraska, Geological and Mineral Resources is the state page on its old workings
NevadaNevada Division of Minerals, Abandoned Mine LandsSean Derby, 775-684-7047, sderby@minerals.nv.gov, with an incident report form on the page
New HampshireNo state abandoned mine land program; tell your county emergency management officeNew Hampshire Geological Survey (DES) is the state page on its old workings
New JerseyNew Jersey Geological and Water Survey, Mine Hazard and Resources ProgramThe survey program for the Highlands iron district
New MexicoEMNRD Mining and Minerals Division, Abandoned Mine Land ProgramContact the program; a mine on private land needs a notarized Consent to Entry form
New YorkNo state abandoned mine land program; tell your county emergency management officeNYS DEC, NY State Mines and Wells map is the state page on its old workings
North CarolinaNo state abandoned mine land program; tell your county emergency management officeNorth Carolina Geological Survey is the state page on its old workings
North DakotaNorth Dakota Public Service Commission, Abandoned Mine LandsThe commission asks anyone building in a historic lignite mining town to call first
OhioODNR Division of Mineral Resources Management, Abandoned Mine Lands Reclamation Programsminerals@dnr.ohio.gov
OklahomaOklahoma Conservation Commission, Land Restoration (Abandoned Mine Land)Report an Abandoned Mine form on the page
OregonNo state abandoned mine land program; tell your county emergency management officeDOGAMI Oregon Historical Mining Information, large format mine maps is the state page on its old workings
PennsylvaniaDEP Bureau of Abandoned Mine Reclamation, Report an AML EmergencyEbensburg district office 814-472-1800 for the bituminous region, Wilkes-Barre 570-826-2371 for the anthracite region, after hours 800-541-2050
Puerto RicoNo abandoned mine land program; tell your municipal emergency management officeThe island has no underground mines, so a hole there is far more likely karst, and the USGS Karst Map of Puerto Rico (Open File Report 2010-1104) shows where the limestone is
Rhode IslandNo state abandoned mine land program; tell your town or city emergency management officeNo state survey page on mines either; the federal offices below hold the records
South CarolinaNo state abandoned mine land program; tell your county emergency management officeSouth Carolina Geological Survey (SCDNR), Mineral Resources is the state page on its old workings
South DakotaNo state abandoned mine land program; tell your county emergency management officeSouth Dakota DANR Minerals and Mining Program is the state page on its old workings
TennesseeTDEC Abandoned Mine Lands ProgramThrough the Division of Mineral and Geologic Resources
TexasRailroad Commission of Texas, Abandoned Mine Land ProgramSurface Mining division; it backfills, caps or gates dangerous openings
UtahUtah Division of Oil, Gas and Mining, Abandoned Mine Reclamation ProgramQuestions by email during office hours, 8 to 5 on weekdays
VermontNo state abandoned mine land program; tell your county emergency management officeVermont Geological Survey, Sand, Gravel and Mineral Resources is the state page on its old workings
VirginiaVirginia Energy, Abandoned Mine Land ProgramMined Land Repurposing office, 3405 Mountain Empire Road, Big Stone Gap
WashingtonNo state abandoned mine land program; tell your county emergency management officeWashington Geological Survey, Coal Mine Map Collection is the state page on its old workings
West VirginiaWV DEP Abandoned Mine Lands and Reclamation, Report an Emergency or ComplaintHave ready the description, the address with municipality and county, the owner and directions
WisconsinNo state abandoned mine land program; tell your county emergency management officeWisconsin Geological and Natural History Survey, Mining is the state page on its old workings
WyomingWyoming DEQ Abandoned Mine Land Division307-777-6145 for a hazardous condition; 1-800-510-0283 to ask whether a property is over a mined area

Public ground

On federal land

An open shaft or adit on public land is reported to the agency that manages it. The Bureau of Land Management Abandoned Mine Lands program covers abandoned hard rock mines on public land in the western states. The Forest Service Abandoned Mine Lands program restores land disturbed by historic mining on the 188 million acres of national forest. The National Park Service Abandoned Mineral Lands program keeps the inventory of about 38,000 abandoned mineral land features inside the parks. Where the problem is contamination rather than a hole, the EPA Superfund abandoned mine lands program handles the cleanup.

Each program says the same thing first: do not go in. Then it wants the location as exactly as you can give it, which on public land is usually a GPS reading or the township, range and section.

The record

After the hole is closed

Keep the state program's report, the insurer's letter and your own dated photographs together. A subsidence event becomes part of the history of the parcel, and the next buyer will ask. The state program enters the site in its inventory, and the federal e-AMLIS inventory lists the abandoned coal mine problems reported by every state program and the reclamation work funded against them, county by county.

Then ask for the mine map. The state program will usually know which working it was, and our guide on how to get the mine map says where the map is kept in your state.

Straight answers

Questions people ask when the ground moves

Open only the answer you need.

A hole opened in my yard. Is it a mine?

Not necessarily. Over an old working it is usually a shaft or a shallow room collapsing. In limestone country, which is most of Florida, Puerto Rico and parts of many other states, the same hole is a karst sinkhole with no mine involved. The state abandoned mine land office or the state geological survey will tell you which, and the answer changes who pays.

Can I fill it myself?

Not before it has been looked at, and never by climbing in. A shaft can be hundreds of feet deep under a few feet of soil, and the fill can go down with the next collapse. The state program closes emergency openings at no charge to the owner, which is what its federal funding is for.

Who pays for the damage to the house?

In the eight states with a mine subsidence program, the program pays if the cover was in place before the damage. Everywhere else it is whatever your insurer wrote, and a standard homeowner policy excludes earth movement. The abandoned mine land office fills the hole but does not pay for the house.

What if the opening is on federal land?

Report it to the office that manages the land: the Bureau of Land Management for public land, the Forest Service for a national forest, the National Park Service inside a park. Each runs an abandoned mine program and each says the same thing first: stay out.

The mine is still working. Who do I call?

The state mining regulator, and the operator. Damage to a home from subsidence over a working underground coal mine is the operator's to repair or pay for under the federal surface mining law (30 U.S.C. 1309a), and the state issues the permit that says so. The federal Mine Safety and Health Administration regulates the mine itself.