After researching the case of Llivia, I can field this one:
After the Treaty of the Pyrenees defined the boundary between France and
Spain in 1659, the border was definitively demarcated on the ground as the
result of three treaties in the 1860s. The first started at Bidossa and went
east, the markers being numbered fomr #1 at that end. The second treaty
contined on to Andorra, continuing the numbering, and the third form andorra
past Llivia (with 42 separately numbered markers) to the Mediterranean
(#600).
The treaties with their descriptions of the border line and the positions of
the markers are available in Parry's 140+ volume set "Consolidated Treaty
Series".
The markers themselves should be shown and numbered on either of the French
1:25000 map series, Topo25 or Series Bleu.

Brendan Whyte

>From: "Eef Berns" <eefberns@...>
>Reply-To: BoundaryPoint@egroups.com
>To: <boundarypoint@egroups.com>
>Subject: [BoundaryPoint] border markers France-Spain
>Date: Tue, 16 Jan 2001 17:28:06 +0100
>
>I did a lot of walking in the Pyrenees, following the long distance -coast
>to coast- path GR10. There's a line of border markers on the mountain
>ridges. I photographed some of them while passing. According to an French
>article I found by accidence, there are 600 numbered border markers. A
>question about these markers in French usenet-newsgroups led to nothing.
>Does anyone of you know more about it?
>
>
>vriendelijke groet,
>
>Eef Berns
>
>-----------------------
>website:
>- de grenspalen van Nederland (the border markers of the Netherlands):
>http://huizen.dds.nl/~eefberns
>
>

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