Take a look at the progress of hardcore rider Matt Griggs at the Tour Divide on the following link:
Matt has put a good dent in the epic 4418kms to be covered self supported from Banff to New Mexico in the USA, roughly 1890 covered so far! Black Bears and Mountain Lions are just some of the crazy hazards that are to be overcome along the route! Check out the event here:
Legendary effort Matt, inspirational stuff!