Whether it was for bikes, 'boards, or remote-control trucks, a lot of us have great childhood memories digging dirt courses. Dave King took it to the next level, made dirt-track construction for BMX bikes his livelihood.

King's got his own sport-landscaping outfit called Dirtsculpt, and builds some of the most badass tracks in bicycle motocross.

Red Bull sat down with him and heard is story, which you can read .

Image: Red Bull