milestone

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milestone

a stone pillar that shows the distance in miles to or from a place

milestone, milepost

A marker showing the distance in miles from a designated location; before the 19th century, such markers were especially helpful to those traveling between outlying communities.
References in periodicals archive ?
The positional accuracy of the street network and the postmile value associated with a record can heavily impact the calculated location.
Geocoding vehicle collisions on Korean expressways based on postmile referencing.
html, District 5 postmile book Prefix Description L Overlapping postmiles R Realignment M Realignment of R mileage N Realignment of M mileage S Spur mileage of original of realign mileage T Temporary connection of original or realign mileage C Commercial lanes paralleling main highway D Duplication (because of meandering county line) G Reposting duplicate postmile at the end of route H Realignment of duplication Table 2.