While doing some walking in the woods, I figured I had some open enough land to make a track. I cut a few trees and cleared some brush and cut back some branches, and its taking shape. It isn't a huge multi-acre track, but more like a 1 acre 2nd maybe 3rd gear practice track. My only issue is, I don't want to pay for fill or anything to fill in some ruts and cover tree stumps and make jumps. I do have acess to a LOT of loam (3 or more year old horse crap). My question is, will the loam hold up to the form of jumps and berms, or will it all wash out after a rain storm? Its free, so if I can pull of making a motocross track with nothing but time and work to pay, that would be awesome.