Trail orienteering (Trail O) is a discipline of the sport designed so that people with disabilities could 
have meaningful orienteering competitions. It completely eliminates the element of speed over the ground, but makes the map-interpretation element much harder. Because control points are identified from a distance, and competitors are not allowed to leave the designated course, participants with and without physical disabilities compete on equal terms. A new form is called TempO which is a competition with only timed controls.
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