[SamAdams76]

I believe you are referring to the old Collect Pond. The below is a rendering of what it might have looked like during the Colonial era. Hard to believe Manhattan used to be so pastoral.

[woodbutcher1963]

Yes, and the reason it is called Wall Street is because in the mid 1600s the Dutch Settlers built a 12’ high WALL. It ran east to west (where Wall street runs today) to keep the Indians out.