I started a little late to do the entire 12.5-miles, it is deceptively easy to go just a little further and then a little further than that. But it is deliciously straight and level, passing through everything from farms and wetlands to downtown Pepperell. The smell of freshly cut hay and farmlands are an added bonus.
The Massachusetts part of the trail goes through Ayer, Groton, Pepperell and Dunstable, and is managed by the Mass Department of Conservation and Recreation. It is in exemplary condition save for a few frost heave cracks.