There's "an enormous [asbestos] mine in Asbest, seven miles long, a mile and a half wide and about 1,000 feet deep for an area that is nearly half the size of Manhattan"

WaPo:

Asbest, named for its chief product, was once known as “the dying city” because of elevated rates of lung cancer and other diseases, the center reported. A New York Times report from 2013 paints a grim picture of life in the mining town

...

But Trump has long expressed skepticism about its potential health effects after it is applied. In his 1997 book, “The Art of the Comeback,” he wrote that he believed that anti-asbestos efforts were “led by the mob.” In 2012, he tweeted that the World Trade Center would not have burned down had asbestos, which is known for fire-resistant properties, not been removed from the towers.