Ahhh, I remember it like it was yesterday. I used the Watermill map, but I wanted to try my hand at a large map to start things off. So I made it as big as the game could handle and began. I finished it with only the default objects, and it just sat there in Map Maker, because at the time, I had no idea I had to export it and all that business.
I just might use that as inspiration for a lake map someday.