What are orienteering controls?

Answer:
Orienteering controls are 3-sided course markers. They are 3-sided, white & orange in color, and usually 1 foot square. In the competitive sport of orienteering athletes navigate their way as fast as they can on unfamiliar terrain between controls using a detailed topographic map and compass. Orienteering is an endurance sport and usually takes place in a forest.
First answer by Terrainrunner. Last edit by Terrainrunner. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].