Growth of 100 Miler Races in the US
Check out this very cool map made by Jonathan Clayton. He’s a GIS analyst (creates and analyzes maps) and budding ultra/trail runner, and in his spare time he’s created a rough map that charts the growth of the 100 mile race in the past 13 years.
He sent it to us to play with, and now we get to share it with you. Enjoy.
Click on the pic to zoom in.
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