14. Coal Mining Caverns Under City Streets
Long before suburbs, coal seams under Pennsylvania and Kentucky towns were extracted by underground mines. Beneath Pittsburgh’s East End and Scranton’s industrial districts lie labyrinths of abandoned coal caverns, now silent. Hazardous subsidence occasionally swallows streets above. In Kentucky, former mining towns like Hazard hide miles of timbered tunnels below city blocks.
Local authorities map these into “abandoned mine land” inventories to prevent collapse. Ghostly voids underline the importance of historic mine surveys to protect modern infrastructure. Explore USGS’s coal mine mapping program for details: USGS Abandoned Coal Mine Mapping.
