Pretty cool, and looks tough as heck. Starting to see a lot more of these Ultra Cross / Endurance races popping up nationwide. A popular one around here is called The Hillybilly Roubaix. Starts in WV, and crosses the PA border. It's 72 miles, but it takes some well over 6 hours to complete. Not my cup of tea, but I would love to check it out this year as a spectator or maybe a volunteer.