Lost John and the Fallen Boulder

In nineteen thirty-five, cave guides leading a work crew through Mammoth Cave found the preserved body of a man who had died roughly two thousand years earlier. They called him Lost John. He had been one of the ancient miners, scraping gypsum from the cave walls deep underground, when a massive boulder weighing several tons shifted and crushed him.

The dry, cool, unchanging air of the cave mummified his body and held it almost perfectly for twenty centuries, along with the tools he had been using in his final moments. For decades Lost John was displayed to tourists on his ledge inside the cave, a startling reminder that people had worked and died in this darkness long before Kentucky had a name. Out of respect for Native American ancestors and their descendants, the National Park Service later removed him from public view and returned him to a protected resting place within the cave.

His discovery gave scientists a rare and intimate window into the lives of the first people who dared to explore this underground world.