That one is about a year old, I remember when it was first posted at the MC forums. That's not the finished version, though, if I remember correctly. I'm fairly sure the bottom was made to look like a swamp later.
Pretty sure I still have that map saved somewhere on my external HD from when it was shared, too. There was also a huge dam and an awesome-looking mansion in it.
againstall has invadedBECKY = 10/10