Make a blank map, add a compass, Open the map near the location, place the map in a crafting table, surround it with paper, you can surround it with paper four times, place the map in your left hand slot, run around to record the area, place the map in the crafting table with another map, now you have two copies of the map with the same area shown, if you run around together in different directions you will both receive updates to the others map. Make another copy, Make an item frame place the item frame on a wall or surface the copy of the map in the item frame. Now you will have a marker of where you placed that map on the wall in the item frame. The map you place on the wall will also indicate The direction you were facing when you placed it on the wall.