Jalón 
A milestone was originally a stick long wooden , section cylindrical or prismatic
topped by a steel ferrule , where it digs into the ground. Currently, manufactured in steel or fiberglass , in sections of 1.50 m. or 1.00 m. long, plug-in by the hucksters or threadable each other to form a marker of greater height and allow better visibility in forested areas or steep slopes. They are painted (the steel) or formed (the fiberglass) with alternating bands usually red and white 25 cm in length. The colors are due to better viewing in the field and the width of the strips is used to roughly measure by Estadimetría . The milestones are used to mark fixed points in lifting topographic maps, to draw alignments, to determine the basis and to highlight specific points on the ground. Normally, they are an aid to theodolite, the compass , the sextant or other measuring instruments as electronic total station
A milestone was originally a stick long wooden , section cylindrical or prismatic
topped by a steel ferrule , where it digs into the ground. Currently, manufactured in steel or fiberglass , in sections of 1.50 m. or 1.00 m. long, plug-in by the hucksters or threadable each other to form a marker of greater height and allow better visibility in forested areas or steep slopes. They are painted (the steel) or formed (the fiberglass) with alternating bands usually red and white 25 cm in length. The colors are due to better viewing in the field and the width of the strips is used to roughly measure by Estadimetría . The milestones are used to mark fixed points in lifting topographic maps, to draw alignments, to determine the basis and to highlight specific points on the ground. Normally, they are an aid to theodolite, the compass , the sextant or other measuring instruments as electronic total station
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