This year's annual Mammoth Motocross is rapidly approaching. In 10 short days, we'll be heading up the mountain for a week of good times and racing with friends on one of the West Coast's most picturesque tracks. Two years ago, Sean Collier showed up aboard his fire-breathing KX500, lovingly named "The Beast", and proceeded to show everyone how to ride a two-stroke. That year, we stuck a GoPro on his helmet and unleashed him on the field. When he pulled into the pits, all he said was, "There's gonna be some good shit on here!" Man was that an understatement...

Photos by Brendan Lutes