Minecraft wiki entry for Infdev_20100327_to_Beta_1.7.3, associated text: At a corner, when two perpendicular Edge Far Lands sections meet, the Corner Far Lands begin to generate. Unlike the infinite-length holes in the Edge Far Lands, the Corner Far Lands contains more normal terrain. This terrain is "stacked" on top of itself to create a bizarre sandwich with layers of ground and air, which gives it its nickname, "The Stack". Each layer looks like a giant floating continent, hovering over the next layer, which is shadowed.