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So, I've come across a Public Land Survey System corner monument. This defines the boundary between Township 28 North Range 40 East Section 36 and T28N R41E S31, and their mutual boundary with T27N R40E S1.
Is this a "man_made=survey_point", a "historic=boundary_stone", or something else entirely? As a bonus question, what about non-corner PLSS markers? |
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Hi Carnildo, it’s still in use as man-made=survey_point, the American long straight border lines are based on these points. Since it’s historical to, it could be a United States National Historic Landmark; the heritage tag could be added as well. The historic_boundary_stone is IMHO more like the Wiki picture 4, https://wiki.openstreetmap.org/wiki/Key:historic. And you example is a kind of "hidden" but secure survey point, but your picture could be a short pole as well, but this one would have a foundation. The single ones like picture 4 would have a certain size but no foundation. 1
From what I've seen, these sorts of survey markers are rarely historic, I doubt you'd want to add those sort of tags. Also, here's a link to the wiki page for survey points: http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurvey_point
(08 Aug '16, 13:58)
neuhausr
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Fascinating, and proof that there may be on-the-ground evidence for PLSS townships & ranges. As an experiment I mapped a very small number in Oregon (1 township http://www.openstreetmap.org/way/363580788 & 2 sections)
It's one of three markers I know about, plus one where I've found four witness trees, but not the marker itself.