Something new I am doing. I make a small (very small) world with a custom terrian. In this case, Frightmare asked for mountains/hills with lots of water. I made a small hill (where you spawn), then a tall, multi-layered, snowcapped, mountain with a river running along it. Across the river is a snow covered island. A dense forest covers the land. The boarders are void, so dont fall off! There is a chest with some good stuff in it right by spawn. Made with Worldpainter/MCedit

Worldinabox forum link: http://www.planetminecraft.com/forums/post84694.html#p84694

Additional Notes

To install: open zip, then place folder in the saves file inside .minecraft