Evidence of Native American Brush Fish Weirs

"What is left today? What remain are the stones, walls and enclosures that survived in protected areas along Connecticut’s coast...These rock piles still exist today..." 

Here in part: http://wakinguponturtleisland.blogspot.com/2011/08/evidence-of-native-american-brush-and.html and here in full: http://www.soundschool.com/fishweirpaper.pdf