The purpose of a control description is to give greater precision to the picture given by the map of the control feature, and to indicate the location of the control flag in relation to this feature, thereby helping the competitor to better visualize the control site.
However, a good control is found primarily by map reading. Descriptions and codes can assist in this task, but should be kept as short and simple as is necessary to locate the control.
Learn more, and download the 2018 version of the IOF Control Descriptions from our website, here.