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Public-images-osm logo.svg highway = milestone
Highway location marker Edit this description in the wiki page. Edit this description in the data item.
Group: Highways
Used on these elements
may be used on nodesshould not be used on waysshould not be used on areasshould not be used on relations
Useful combination
See also
Status: de facto


A  highway location marker is the modern-day equivalent of a milestone. Unlike traditional milestones, however, which were originally carved from stone and sited at one-mile intervals, modern highway location markers are made from a variety of materials and, in most countries, are spaced at intervals of a kilometre or a fraction thereof.

How to Map

Draw the node node direct on the way that represents the highway and add highway=milestone.


The following features are based on those described in the article Proposed features/Milestones. This tag has not been approved but is widely used.

Tag Value Description Recommendation
highway milestone It's a highway milestone. The position of the node, member of highway way or in place is subject to discussion mandatory
ref <Milestone reference> Only to be used if the milestone actually has a reference number written on it. optional
marker <Milestone shape> Visual shape of milestone, usually stone or plate optional
distance <Milestone distance> A number being the distance from the beginning of the road/rail.
Decimal numbers specified with points are allowed. If no unit is explicitly given, the unit is assumed to be kilometers. To specify a different unit, add a space after the number, then the unit abbreviation (e.g., 35.0 mi)

See a discussion on the tagging list in May 2013 suggests distance=* is a better choice than either pk=* or kp=*.

Similar tags

For "modern" milestones look at

For "historic" milestones look at

For utility markers look at


To be completed