Interesting story - probably would have been fun to watch if it wasn't your land being ripped. <img src="/forums/images/graemlins/shame.gif" alt="" />
The type of chain you mentioned is known as a ring chain. I seem to remember reading in a logging article that ring chains are more prone to damaging trails than link chains - but after reading your story and how the skidder left little impact I may reconsider. Ring chains look like a strong design, not to mention downright badass.

97 Montero SR: Factory rear locker, 3.5 L 24 Valve V6, ActivTrac 4wd (Love it) , 3 way suspension, four wheel disk brakes, 32x11.50 Pirelli Scorpion ATs