* '''-1''': Trail type, in this exmaple its a hiking trail or horse trail
A '''-X''' is added to the Used track name of optional side trails or alternative routes. Example track nametypes are: ''GPT01-TR007-0'''''-X''' The '''-X''' at the end means that this is an optional side trip or alternative route. In this example its the optional climb to the summit of the volcano Descabezado Grande.
