Ghost towns can include sites in various states of disrepair and abandonment.
Some sites no longer have any trace of civilization and have reverted to pasture land or empty fields.
Some sites may even have a sizable, though small population, but there are far fewer citizens than in its grander historic past.
During the 18th and 19th century, a number of "boom towns" were formed to participate in the flourishing coal, railroad, and iron industries.
Towards the late 19th century, the resources in the region had begun to deplete, and the onset of the Great Depression finally killed many of the industrial towns.