Valleys filled with sediment and, during the wet times of ice ages, with lakes, such as Lake Manly.
As Lake Manly evaporated to the surface of Death Valley, it left a remarkable legacy.
Lake Manly left behind many deposits, indicating the range of its waters.
Deposits from Lake Manly are often only partially intact because they have been affected by erosion or faulting.
The depositional features provide insight into Lake Manly's history and expand the geologic understanding the region.
In 2004, severe flooding resulted in Lake Manly reappearing on a large scale.
Disappearing into the ground, it feeds the aquifer that is the remnant of prehistoric Lake Manly.
Lake Manly used to be very large, but changes in the weather caused the rivers that brought water into the lake to dry up.
After a long time, the water in Lake Manly began to dry up too.
It is here that the last survivor of Lake Manly resides; the Death Valley pupfish.