Well there are a lot of smaller, but fun trails in the Claremont/Charlestown area, and quite a few right over the river in Vermont. Near Rockingham VT/Bellows Falls. Both sides of the Connecticut River.
Now that I think about it, I will have to get out there and start putting these on the maps. One thing though.... gotta be thread lightly for sure in most of these areas.... some of the roads have been used by locals for years, myself included and show a lot of wear and tear.