History
In the early days of orienteering, competitors used whatever maps were available; these were typically topographic maps from the national mapping agency. While national mapping agencies update their topographic maps on a regular basis, they are usually not sufficiently up to date for orienteering purposes. Gradually, specially drawn maps have been provided to meet the specific requirements of orienteering.
Maps produced specifically for orienteering show a more detailed and up-to-date description of terrain features. For example, large rocks above the soil surface do not normally appear on topographic maps but can be important features on many orienteering maps. New features such as fence lines can be important navigational aids and may also affect route choice. Orienteering maps include these new features.
Cartographer Jan Martin Larsen was a pioneer in the development of the specialized orienteering map.
Read more about this topic: Orienteering Map
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