The Great Basin hides a secret nobody talks about. Beneath Nevada’s silent valleys, ancient evidence suggests this desert once held massive lakes deeper than the Great Lakes.

The Great Basin is the largest desert in the United States, covering roughly 200,000 square miles across Nevada, western Utah, eastern California, southeastern Oregon, and southern Idaho. It is larger than California and roughly the size of France, yet it holds very few residents. One of its defining characteristics is that no river within it ever reaches the sea. Every drop of rain either evapora…