There are over 250,000 rivers in the U.S., some subtly serene, others tremendously tumultuous. But in this visualization you can see them all—and the color shows which way their waters flow.
via Gizmodo http://ift.tt/1whaJT7 http://ift.tt/16MwYvx
There are over 250,000 rivers in the U.S., some subtly serene, others tremendously tumultuous. But in this visualization you can see them all—and the color shows which way their waters flow.
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