Observation Post. Post You See In Pic Was Used To Hold What The Military Called A M1910 Scope When Standing On Observation Post You Can See Clean Over The Mound Into The Delaware Bay

    Tunnel On Top Of Mound Leading From    One Observation Post to Other Observation Post On Other Side Of Mound

     Stars Leading Out Of Observation Tunnel To Top Of Mound

    This Pic Indicates how The Structure Was Built It Was All One Solid Concrete Structure With a Thick Black Tar
To Adhes The Fire Place Or Chimney Blocks To Help Keep In Heat