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King of the Hammers is considered the toughest one-day off-road race in the world.
It is the largest off-road race event in North America in terms of both competitors and spectators. It combines desert racing and rock crawling, and has expanded from one race to a series of 5 races held throughout the week that take place each February on BLM-manged public lands in Johnson Valley, California. Original public domain image from Flickr
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