Unfortunately, the actions of a few have dramatic consequences for other snowmobilers. See this thread, in particular "Pepper's" posting in this thread:
http://www.winnipesaukee.com/forums/...ead.php?t=1607
While Mother Nature has a way of bringing back damaged plants in spite of us (us used loosely), man-made items have to be replaced at a cost to the land owner, and that causes access to be denied to all snowmobilers, including the conscientious snowmobilers.
Trails are generally well marked, and instances such as Straightback and the Weirs access make you wonder "What part of stay on the trail don't you understand?????????".