Underground is taped live 333 feet below ground at Cumberland Caverns in McMinnville Tn inside of what was named by the first people to behold the natural amphitheatre, The Volcano Room. Here water and time entwined 3.5 million years ago to create one of the most acoustically pure natural spaces on earth. No man-made sound reaches the Volcano Room and the living rock hued amid the eons is jagged and uneven, providing limited echo and superlative acoustics renowned the world over.

The primordial silence and perpetual darkness give way each month to the sounds of some of the finest music by the greatest musicians on earth. Regardless of outside temperature, the Volcano Room is a constant 56 degrees with 99% humidity, which feels cool in the summer and toasty in the winter.

The experience at Bluegrass Underground begins at Cumberland Caverns in the light of day. Tour guides lead you through the cave entrance and into another world. A subterranean descent takes you past underground pools and waterfalls and to the Volcano Room, gigantic and majestic chamber where you will enjoy music in a venue unlike any other you are likely to ever experience! Bluegrass Underground is proud to be heard far and wide above ground on the Legend, 650 WSM each and every saturday night just before The Grand Ole Opry.