|historic = boundary_stone|
|A historic physical marker that identifies a boundary|
|Used on these elements|
|Status: de facto|
|Tools for this tag|
Ais a robust historic physical marker that identifies the start of a land boundary or the change in a boundary, especially a change in a direction of a boundary. They have often been used to mark critical points on boundaries between countries or local administrations but have also been used to mark out the limits of private land-holdings especially in areas where fences or walls are impractical or unnecessary.
Boundary stones are typically placed at a notable or especially visible point. Many are inscribed with relevant information such as the abbreviation of the boundary holder and often a date.
How to map
inscription=* - inscriptions on the sides of the marker could be separated by a sign "/"
year=#### (year) (or documented tag start_date=*)
moved=yes - indicates that the marker is not on its original position
format=* - describes the shape of the marker
format:top=* - describes the shape of the marker's top
height=* - height of the marker
collection=yes - the marker is a part of the collection of historical markers
ref=* - the number written on the marker
old_ref=* - the (old, changed) number written on the marker