Problems with Abandon Mine Land
1. Mine Openings
Older mine openings may have not been adequately sealed, or sealed at all. These opening can be hazardous. Not only falling into a mine is dangerous, but exploring one can be as well. Mines can have poisonous gases, unstable roofs, flooded sections, and are pitch black.
2.Land slides
Gob piles, spoil banks, and mine slopes can often become unstable. These areas then have the potential to become a land slide due to steep hills, or water saturation. The slides can cover roads and block streams causing flooding.
3.Highwalls
Highwalls occur during surface mining when the coal seam is exposed. The highwall can resemble a cliff and can be extremely dangerous if it isn't covered over to remove the free fall.
4.Acid Mine Drainage
(more in a later post)
5.Subsidence
Subsidence is when houses, and other dwellings undergo damage due to an underground mine collapse.
In Athens County it is mandatory to have subsidence insurance coverage. This coverage can be obtained through a homeowners insurance company and is a $1 annual premium for the residence.
Its important for residents to know about AML before building a house in the area. The DNR has composed a guide of things to learn before building.
The Department of Natural Resources in Ohio has devised an interactive map (may have to disable pop-up blocker, and agree to terms of use) to see where underground mines are.
(information from the Ohio DNR)