Located near historic Russell Mills in Dartmouth, this preserve once contained an active farmstead and millworks. Although enveloped in the deep woods, remnants of long-ago human habitation are clearly evident along this route preserved much like it was in the 1600s when the area was first settled.   from trails.com  

good intermediate trails with some hills and bridges. watch out for walkers and horses. mostly double track with single track unmarked trails. red and yellow trails are a good warm-up. green is a little more difficult. and the blue is the hardest with the most hills   from singletracks.com