the old coal mines on the east seem to be giving away a lot around here.
http://www.courierpress.com/news/2012/j ... ne-line-p/
Mine subsidence damages Boonville home
BOONVILLE, Ind. — A home on Maxville Road in Boonville sits about three feet lower today than it did two weeks ago. Officials blame the problem on the collapse of an old mine shaft, believed to have been abandoned in 1899. And that may be just a piece of a much bigger problem.
Since 1890, when a vertical mine shaft was built near Newburgh, nearly every section of Warrick County has been mined for coal. In places where underground mines were used, there are now gaping holes under the foundations of hundreds of homes, schools and businesses.
Aja Mason, the curator of the Museum of the Coal Industry in Lynnville, Ind., said the problem of mine subsidence is only going to get worse.