I’m from new jersey too but the northern part(Sussex county). Most of the stuff I heard was more weird things than actual folklore.
For example there was the toilet in the woods. Off of rt 23 if you pull over at a specific spot in the middle of no where, walk about 1/2 a mile into the woods there was a toilet. No outhouse or Porta potty. Just a toilet out in the woods. Weird thing is it had to be connected to a water source and sewer because it worked, you could flush it and everything.
There was also the pyramids off Clinton road. Just square based pyramids made of brick in the woods, no idea why they are there or what there purpose is/was. There was also stories of kkk on Clinton road so if you saw a car with a headlight out and you flashed your lights to alert them they would chase you and run you off the road(pretty sure this was just stupid highschoolers being bored and assholes).