== The automatic way ==
The automatic way is to use the '''Flatten''' command by right-clicking on a tile with your [[shovel]] activated. AdditionallyIf the tile is too steep to stand on, you must also be physically standing on that can still use flatten successfully from an adjacent tile for it to work right.
'''Note''': You cannot flatten a corner which is shared with a tree tile (or other immovable object). If it says "some corner can't be raised" then this is why.