#Ideas
This map reveals the directions of America’s rivers
Do you remember a visualization of city street grids color-coded by orientation? The effect was stunning. Andrew Hill, a biologist and cartographer at CartoDB, used a similar methodology to make map of orientation of America’s rivers. The map clearly shows the topography of the U.S. highlighting the biggest mountain ranges but also slopes with are usually not visible on a map. The map uses vector watershed data which you can download here. Check out the map. It’s really beautiful.

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Why AI is the Key to Stopping Global Deforestation
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Top 20 most amazing and beautiful maps you’ve ever seen