What is described as the Dover Demon I 100 percent saw no question with 4 other people

Fresh pond area had a huge dump today known as danahey park, we used to play in there often.  I had not thought about this since it happened and we never told anyone..my brother mentioned it yesterday and our two other friends we havent seen in 20 years easy.  
We walked along a "path" if you can call it that and we all stopped as we saw it and it saw us...the most striking feature was red eyes..glowing red..it had its hands on the ground and stood erect, it was standing in the path, it was doing something when we came upon it, we startled it and it startled us...it turned, looked directly at all of us and slowly walked away. 
The dump had growth way over our heads, dry reeds and like that, when it left we heard nothing, an impossibility in the dump.  The amount of space encompassed by the dump was huge, we as kids knew our way around it, no one else really did, we played in ther all the time..we knew it well..  
As I said I havent seen my friends in 20 years if approached the definetly remember it, the certainly never told anyone and will remember we agreed it was an orangutang, with the one unexplained item, the red glowing eyes...
Witness indicates that date of sighting in 1977 is approximate.  PD