, looks quite disturbing, but its mud. This is the hill that made the bike fairly dirty. We call it the 'Clay hill' as all it is, is just mud & clay and extremely slippery. You would more likely hurt yourself pretty badly if you didn't use your brakes as there is a 75 metre tree right in the middle at the end. The hill looks MUCH bigger then in the picture. My riding buddy (blue_neon, forum member) had some trouble coming down it as you might see him in the picture since his rear brake failed on him.