They include the old mine that caused the I-80 sinkhole last month in Wharton, according to a map provided by the New Jersey Department of Environmental Protection. Can’t see the map? Click here.

Iron, and mining for the mineral, has defined Wharton, New Jersey, for much of its history — since even before the town was named.

They include the old mine that caused the I-80 sinkhole in Wharton, according to a map provided by the New Jersey Department of Environmental Protection.

They include the old mine that caused the I-80 sinkhole last month in Wharton, according to a map provided by the New Jersey Department of Environmental Protection.