Acquired April 2, 2011, and February 27, 2011, these natural-color images show rising waters on the Kuiseb River, which flowed all the way to the Atlantic Ocean for the first time in decades.
The Salmon River in Idaho, one of the longest free-flowing rivers in the United States, rushes through a geologic wonderland of wooded ridges, eroded bluffs, and stone towers and crags.