juggernog Minecraft b1.3-b1.7.3 Seed
Seed Code: juggernog
It has the best caves I've ever seen.
X: 40 / Y: 60 / Z: 68
Main entrance to the Omniverse cave system. (I've seen all the minerals in the game in this game without destroying or placing anything but a torch,)
X: 27 / Y: 52 / Z: 61
Alt. Enterance to Omniverse cave. Gets you near diamond level quicker, but drops straight down.