That is why I use a Geographical Information System (QGIS) to manage Kulthea (maps, realms, city maps, roads, places of power, etc.).
I still have a lot of work to finish it (hum, it will never be finished, but that is not the point), but when it is done, it is done and easy to update.
It as also a big advantage, using different layers, it is easy for me to hide those I don't want the players to know about...