Minecraft wiki entry for Mapping, associated text: If you want to keep that map, you should duplicate it at that point by placing it and an "Empty Map" on your crafting area or table. If one of those is then placed in the center of a crafting table and surrounded by eight paper, a zoom-level 1 map is crafted. This map will cover an area 256×256 blocks and would be labeled "Map #1" (assuming no other maps were created in the meantime).