Dr. Dasypodidae said:
I believe that the Cabot Trail signs that appear from time to time at Heath's Gate have been posted by the people who own the house and wood shop just north of the trailhead to save people from knocking on their door with questions. But, my guess is that the disgruntled land owner (DLO) up the trail tears those signs down, just as disgruntled hikers tear down his "no entry" signs up the trail (i.e., it is a sign posting and tearing down stand off). Legally, the DLO is wrong, as his deed states that there is a legal right-of-way across his land, which anyone can pay to have copied at the Registry in Lancaster. But, do you want to argue with this guy at gun point? I met one of the DLO's neighbors who has no problem with hikers but has spent years battling the DLO over access, as the DLO loves to go to court, wasting everyone's time and money. The USFS probably does not want to deal with the DLO in court, so took the easy way out by closing the trail.