subterranean rivers

Subterranean rivers are streams that flow beneath the Earth's surface, typically through caves, caverns, or porous rocks. They originate from underground springs, rainfall seeping through the ground, or the connection of surface water to underground channels. These rivers often follow complex paths, shaping the landscape over time and supporting unique ecosystems. Despite their hidden nature, they can be quite large and powerful, sometimes emerging at the surface as springs or contributing to underground cave systems. They play an important role in geological processes and water cycling within the environment.