"Coal_Region#History" . "mining region" . . . "Southern Pennsylvania Anthracite Field" . "Southern Anthracite Coal Fields" . "coal miner in Pennsylvania" . "Coal Belt" . "Coal City" . "coal region" . . . "Coal Region" . . "Southern Anthracite Coal Region" . . "coal mining" . . "Northern Anthracite Coal Fields" . "Anthracite Coal Region" . "coal Region" . "coal mining region" . "Pennsylvania coal country" . "Region" . . "coal mines" . . . "Pennsylvania's Anthracite Region" . . "anthracite coal region" . "region" . "coal fields" . "Coal Region" . "Pennsylvania Coal County" . . "anthracite region" . "Southeastern Coal Region" . "coal industry in northeastern Pennsylvania" . .