@colorado hirailer posted:If mining on Long Island, how deep did they get before they hit the water table? When exploring a Minnesota gold rush site ( yeah, they had one as did North Carolina), on a tiny island in a lake, I found all the shafts were full of water.
I play golf on a course that was a former sand pit in Port Washington NY About half of the concrete in Manhattan came from this mine including the Empire State Building.
https://www.nytimes.com/2008/0....html?smid=url-share
The site goes from a few feet above sea level on Hempstead Harbor to about 200' in the back.
I'm all in for the LIRR cars.....👍👍