How many underground mines Kentucky have?

As of 2021, there are nine active underground coal mines in Kentucky and several inactive mines. The active underground coal mines in Kentucky mainly produce low-sulfur coal, primarily used for electricity generation. These mines are located in counties such as Perry, Pike, Floyd, and Letcher. Please note that this information might be outdated as the number of active underground coal mines can change over time. For the most up-to-date information, I recommend checking with the Kentucky Energy and Environment Cabinet or other relevant sources.