What must be done to a map before it can be effectively used?

To effectively use a map, it must be oriented. Orientation involves aligning the map with the real world so that directions and features correspond correctly to their actual locations. This is crucial for navigating and understanding the terrain or the area being mapped. When a map is oriented, the north on the map aligns with actual north, enabling the user to accurately interpret symbols, distances, and the layout of the environment. Without proper orientation, it would be challenging to utilize the map for navigation or planning, potentially leading to confusion or errors in understanding the terrain. This foundational step ensures that the user can confidently rely on the map for their intended purpose.