In the shadowy world of drug trafficking, where innovation and secrecy are paramount, cartels and criminal networks have long sought out unconventional methods to transport their illicit goods. From submarines to drones, the ingenuity of these organizations knows no bounds. However, one of the most ancient and overlooked methods of smuggling lies beneath our feet: the vast, intricate networks of natural cave systems and mountain ranges. These underground highways, often referred to as “Indian Trails” in some regions, have become a critical tool for cartels to move drugs across borders undetected. Beyond their use for smuggling, these caves have also been linked to mysterious disappearances, raising questions about their role in a broader web of criminal activity.