A strange gust of cool air billowed from within Lookout Mountain—and led one explorer to discover a most coveted American natural treasure. Excavators felt the unexpected cool rush blow from the newly-drilled opening, and, curiosity piqued, Leo Lambert sought to track down the source of the mystery breeze.
During their 1928 Tennessee dig, Lambert embarked on a 17-hour spelunking expedition 1,120 feet deep under the mountain. There he observed a tall and majestic subterranean waterfall, which he named after his wife. This became Ruby Falls.