Maps for orienteering are specially curated, to include the level of detail that orienteers require in order to read the terrain and understand the area that they are orienteering in. Maps are drawn on a magnetic north, and use a range of colours to represent land forms, vegetation, buildings and open land.
The colours are an integral part of the map symbols:
This is an example of a terrain map, with the annotations highlighting different aspects of the area. It is important to note the purple hashed areas, as these indicate out-of-bounds on the map. This means, under no circumstances can competitors cross these areas whilst out on the course. Clubs are able to and are very willing to work with landowners around out-of-bounds areas, and can be implemented on the map to ensure the avoidance of particiular sections of an area.

Many thanks to PFO for allowing us to use their map.
This is an example of an urban, as you can see, this looks very different to the terrain example above. This is extremely detailed around the buildings, roads and paths. Even canopies between buildings are mapped.

Many thanks to SELOC for the use of their map.