This drainage basin is the lowest point in North America at a depth of 282 feet below sea level. Even though there is no outflow to a larger body of water, it provides a nice habitat for plant and animal life. The accumulation of salts does make the water undrinkable, but when it evaporates, it leaves behind a network of hexagonal-shaped salt flats. Because this is a delicate area with a fragile ecosystem, vehicles are only allowed on established roads. The boardwalk trail is about one mile long from the paved lot.