New York without the city

What did Manhattan look like before its trees were cut down and it was covered in concrete and glass? It looked like this:

By internet standards, this is ancient, but so is the Manhattan that it depicts, so I figure that is okay. The most interesting part to me is the interactive map that lets you compare Manhattan today with a British map from 1782. I’m not sure how sociological this is, but I’m always fascinated by the extent to which we transform coastlines, such as that of the Harlem River.