"I live 10 minutes from Sweet Hollow Road on Long Island. There are so many legends that are about that road and preserve, but the most popular is Hatchet Mary. There are lots of variations of the tale, but the Sweet Hollow Road one that I grew up with was that Mary Hatchet was a troubled young woman who lived near Mount Misery (a road off Sweet Hollow) and killed her whole family with a hatchet. It's then said that she was committed to one of the infamous asylums located in the preserve (no one has been able to find proof of these asylums) but Mary ended up burning it down and fleeing, killing hundreds of inmates. It is then said she was caught and hanged. Also there is a cemetery on Sweet Hollow Road and it is rumored that her grave is located there.
The preserve and road are considered the most haunted places on Long Island. Besides the Mary legend, there is a small bridge that you drive under when entering the road that a school bus fell off of killing many children and also its rumored a group of teenagers hung themselves off the bridge, so when your driving and look in the rearview mirror you can see the bodies hanging.
There were many car accidents because the road is so narrow. I know of the legend of a ghost couple that wonder the road looking for a ride, will refuse you when you offer, then when you drive away they will be gone. Also there is a police car that pulls you over and disappears.
And on top of all that hundreds of years ago Indians refused to settle on the land because they thought it was cursed. They saw strange lights in the sky and I have heard of UFO sightings as well as the 'men in black' visiting people who live on the road.
I've been on the road hundreds of times and have walked up to Mount Misery Road. I have not seen anything, but theres defiantly a dark feeling near Mount Misery, beautiful trails though."