A project I have been working on for my server. I ended up not using it, and decided I'd post it on here. I used some bo2 objects from the MassiveCraft TerrainControl page. I also used WorldPainter, MCEdit, and my right hand (Because there is no left hands in Minecraft yet).

The world is roughly 10,000,000 blocks in land size. I'm not counting the ocean, as it continues on past the boundary I've edited. The file is somewhat large, so beware the bytes.

This map IS survival ready, and therefore, I have some challenges (Mostly finding landmarks, and yes, they are a bit last minute.):

-Find the volcano, and put it out with water.
-Find the spire and build a beacon (of any size) at the top. The spire is in the middle of a bay with mountains surrounding it.
-Find the underground chasms, mine all of the diamonds on the surface, and put out any lava pockets.
-Find the lake in the middle of the forest. (The forest I'm referring to, is the one found on the continent you start out on. The only other forest is in the taiga biome, and you won't find a thawed lake there. There is only one body of water in the forest, so if you find a lake, and it is in the forest, you found the lake in the forest! :P) Once you find the lake, plant a pine tree in the middle of it, and stay there until it grows.

If you like the project, then add a diamond.