Kyrat is a huge place, but maybe there are some people that have already fully explored the mountainous environment from one end to the other. If that's the case, Ubisoft would like to remind everyone that Far Cry 4 has a fully functioning map editor.
Far Cry 4's map editor allows creators to lay out map designs as they'd like. They can also set win conditions, enemy types, item and vehicle layouts, and other random wackiness.
For an idea of the crazy scenarios that can be laid out, watch the video below. The full list of user-created maps can be found on the Map Browser in the game's Chronicles Menu.