Using cartographer's tools, you can create accurate maps to make travel easier for yourself and those who come after you. These maps can range from large-scale depictions of mountain ranges to diagrams that show the layout of a dungeon level.
The cartography kit consists of a quill, ink, 10 sheets of parchment, a pair of compasses, calipers, and a ruler.
Arcana, History, Religion. You can use your knowledge of maps and locations to unearth more detailed information when you use these skills. For instance, you might spot hidden messages in a map, identify when the map was made to determine if geographical features have changed since then, and so forth.
Nature. Your familiarity with physical geography makes it easier for you to answer questions or solve issues relating to the terrain around you.
Survival. Your understanding of geography makes it easier to find paths to civilization, to predict areas where villages or towns might be found, and to avoid becoming lost. You have studied so many maps that common patterns, such as how trade routes evolve and where settlements arise in relation to geographic locations, are familiar to you.
You can make a copy of your own
You provide a sheet of paper, a sheet of parchment, or a book with at least one empty page, as well as ink and an ink pen, or a cartography kit, and make an Intelligence (Cartography Kit) check to make a map with the features of the area. If you have proficiency with the tool and in the Survival skill, you have advantage on the check.
Activity DC
Determine a map's age and origin 10
Estimate direction and distance to a landmark 15
Discern that a map is fake 15
Fill in a missing part of a map 20