This article expands upon the current “resource curse” literature by using newly collected county data, spanning over a century, to capture the short- and long-run effects of coal mining activity. It provides evidence that increased levels of coal production had positive net impacts on county-level population and manufacturing activity over an initial ten-year span, which become negative over the subsequent decades. The results provide evidence that any existence of a “resource curse” on local areas due to coal mining is a long-run phenomenon, and in the short run there are potential net benefits.