The bordermarkers of the Pyrenees : to-do list
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Planning 2024
September 2024
Pyrénées-Atlantiques (001-311)
- nothing left to do

Hautes-Pyrénées (312-417)
- walking the main route between 314 and 319
- redo the climb to 315 from the Spanish side
- a new search for the missing 'bornes de paçage' between bm333 and bm358
- a new search for the bm359-cross engraved by Jean Sermet (1957). The position of bm359 on the french IGN-map matches a lot better with the distance of 330m from bm359 (when measured downhill taking in account the denivellation). The cross 80m NE, found in 2009 by Paco Nudel, is until now considered as being the bm359-cross of Jean Sermet, despite serious doubts.
- checking a direct route from bm358 to 359 (see this page)
- a search for marker A from the 'terrain indivis' S of the bm408-409-borderline
- another search for the Croix de Malfrenor (beginning of the 'Ruissau du Therme' between bm408 and 409). If found, it provides additional evidence that this ruisseau was meant by the treaty as the borderline until its confluence with the Garonne
- a survey of the hydrography around Cabane de Héréchet

Ariège (418-426)
- nothing left to do

Pyrénées-Orientales (427-602)
- bm542 once again by the classic route to see if it's still possible

winter 2024-25 Completing the GRPdesBF-stages on the website
winter 2024-25 Writing and publishing my topoguide of the GRPdesBF?

Bordermarkers - still to find or disappeared or shattered in pieces (march 2023)

Bordermarkers not found

bm236 cross at the summit of Pic d'Orhy, not found on 200906012011081720170730 and 20220825, neither by others. Official reports consider this bm as disappeared. 
bm255 borderstone on the Port d'Ourdayté, not found on  20090602,  20090603,  201010910, 20130902 and 20200907. There are reports that this bm disappeared in september 2007.
bm271bis bm271bis is considered to be destroyed, the site was visited on 20110828 and 20120829,   20130901 and 20220824. See 20130901 and 20220824 for an analysis of the original location of bm271bis.
bm297 cross engraved in a rockwall but destroyed/disappeared. The site was visited on 20120827 and 20210616. Was 'replaced' in 1977-78 by a masonry pillar on a hilltop 175m away.
bm359 found on 20110901 thanks to directions of Paco Nudels and Charles & Josette Darrieu and revisited on 20140527, 20210611 and 20210917 . However: questions remain if this is the real bm359. See this page for those questions.
bm364 not found on 2009061020100913 , 20110901  and 20150707. And neither found by Robert Darrieumerlou,Paco Nudels, Charles & Josette Darrieu and Jacques Koleck. Paco supplied an old picture of the bm on this page, originating from the Archives de la Guardia Civil.
Llivia bm16north Llivia has its own set of 45 bordermarkers from which 9 are double bm's. Somehow, I never searched for the second bm16 until 20130604 (and 20220830) The treaty explicitly states that there are two markers no. 16. I couldn't find the second one, nor did Charles Darrieu and Jacques Koleck. It might be removed when the road was enlarged.

Bordermarkers disappeared in recent years

disappered in 2021 or earlier (see this page)
found missing in 2022 (see this page)

Bordermarkers still present but shattered in pieces

bm067  -> see this page
bm098 -> see this page


- design of the main route
- design of the variants
- perhaps a page on lightweight-backpacking


- more information on the actual existing delimitation from the Treaty of the Pyrenees (1659) until the Bayonne-treaties, three centuries later
- more information on the delimitation-process in 19th century. Perhaps Sermet's "La Frontière hispano-française des Pyrénées: et les conditions de sa délimitation"  can supply that information.
- add information on the Lies and
Passeries, centuries-old local cross-border agreements on cattle grazing and mutual support and perhaps delimitation.

- add an item on the French hamlet of Ondarolle which religiously resides under the Spanish church.
- draw the line of the watershed on a map and compare it with the actual borderline.

- put local versions of all treaties and other documents on the website itself
- extract the esfr-treaties from the "Documentos internacionales del reinado de dona Isabel II desde1842 a 1968 Parte 1 - 1869" and put these Spanish-language documents on the website if not available elsewhere.

- adding the esfr-bordermarkers and missing trails on Open Streetmap (OSM).

- add a page on the morphology of the bordermarkers: on their design, their differences and similarities

In general
- make a link down below on the (long) pages to quickly return to above instead of having to scroll back to the top.