Southeast Kansas has a unique history with a number of nationally registered historic places in this coal-mining region.

It is located within a coal-mining region, and this fact was important in its economic history.

The county was once a major coal-mining region.

We were the forgotten, the underprivileged of the coal-mining regions.

Units were again utilized to keep the peace during a series of bitter strikes in the coal-mining region of southeast Ohio.

In the coal-mining regions the employment of children was notorious.

They married in 1963, then moved to a small town in the coal-mining region where Bela had grown up.

The daughter of commercial artists, she was raised in the coal-mining region of northeastern Pennsylvania.

A coal-mining region is a region in which coal mining is a significant economic activity.

This area, the heart of a large coal-mining region, includes the district's largest city, Johnstown.