An ancient Native American Legend of woods which are haunted by Evil Spirits here in Western Pennsylvania

The legend goes back century's and warns the white man not to trespass on those grounds considered  sacred to the native American Indian.
They speak of  spirits which live in the deep woods that will take vengeance when disturbed.

http://www.native-languages.org/shawnee-legends.htm

While the White Man scoffed at such things one has to wonder when you read of all the disappearances  and other supposed evil doings which have happened in the woods including the practice of witch craft  and even voodoo if there really is not something that goes thump in the dark.
 as Native Americans talk of  Skin Walkers and Shape Shifter and massive hairy bear beasts

http://www.rense.com/general77/skin.htm

I can tell you the woods at night are not a friendly place having camped in them  as a boyscout and working in them and driving back many a long narrow desolate country road in the middle of the night when creatures are about.
I have never seen a Big Foot or UFO but   heard plenty of strange noises at night in my travels.
Thou one time I did have an encounter with something I can only describe as a dark hooded shadow
possibly a Specter one time which was hiding down in a deep ravine. needless to say my friend and I who encountered it did not stick around to find out what it was. I still get nightmares over it .

 Many people talk about encounters with shadow people it may have been one of these.

https://en.wikipedia.org/wiki/Shadow_person

I have also come across klan activities in the deep woods yes the KKK particularly in Fayette and Indiana county at night . yes if you have ever seen the movie Deliverance with Burt Reynolds yes I have traveled in these areas where they claim you can hear the Banjo's playing.

Now luckily Pa has not seen the rash of disappearances in the woods as has happened in National parks  out west . But there is a very disturbing trend of people disappearing in Western P.a
 

http://www.reddirtreport.com/rustys-reads/book-review-missing-411-eastern-united-states-david-paulides

http://www.amazon.com/Missing-411-Western-United-States-Canada/dp/1466216298#reader_1466216298

So one must always be vigilant when traveling alone especially at night in the deep woods.

There has also been plenty of rumors of Wild Men who live in the deep woods  covered in furs and mountain men who live off  the terrain . 

There is also the constant dangers of running across drug dealers who are growing  their  Pot Stash  or  Moon Shiners.. Yes we have moonshiners in the woods in Pa.

One thing for sure if the sign says do not trespass best you do not .

While there may be nothing to Indian legends there are plenty of dangers from your fellowman in the deep woods so always be on guard should you decide to enter.