A map of all the rivers in the United States, and nothing else

Just how many rivers are there in the United States? Based on this map, a hell of a lot more than you might think.

Nelson Minar put this wonderful map together. He put all the data the files he used up on Github so you can make your own version. See also: this map of U.S. roads and nothing else.

A map of all the rivers in the United States, and nothing else

California

A map of all the rivers in the United States, and nothing else

Mississippi
[Via Kottke]