The bordermarkers of the Pyrenees : all my trips
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- tuesday 26 august 2025 -
Finding bm271bis (and redoing 271)

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Summary: one of 7 daytrips from which 6 were done with Carlos & Conchita Roca to assist them in their quest to finish doing all esfr-bordermarkers.

Today:  a solotrip to find bm271bis, recently discovered by Sébastien Marc (see this post) and redo bm271.

Weather: cloudy with sunny spells



track-20250826.gpx
This gpx-track has not been manually corrected which explains the inaccuracy and misalignment at some points. The original elevation recording has been replaced by more accurate DEM-data with Gpsvisualizer.com. For cartographic backgrounds: see the cartography-page

Gps-waypoints of all bordermarkers (most recent version):
kml:  esfr-bordermarkers-all-waypoints.kml
gpx:  esfr-bordermarkers-all-waypoints.gpx (with reliable elevation data added by gpsvisualizer.com)
According to Garmin Basecamp (uncorrected track with elevation added by Gpsvisualizer.com):

Distance:  14,2 km
Max-height: 2355m
Min-height: 1678m
Elevation: +923m -923m
Total elevation: 1846m

Start 7:11  Finish 15:03
Total time: 7:52


My basecamp for 2 nights in Arette.


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Parking La Contienda.

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I use a gpx-route with intermediate waypoints which I made a few years ago, based on routes I spotted on Osm and Topopirineos.

See for more information (maps and considerations) on this alternative route this page.

Navigation will be along 8 waypoints. Those waypoints are integrated in this kml-file (gpx-file with this link).
Via a network of crosscountry ski-lanes


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to a large meadow where I enter the rocky karst-plateau.


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After a while I reach open grassy terrain.

There are some cairns and now and then trails but not consistent to guide you.

I work my way from waypoint to waypoint.


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Some wildlife in between.


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The goal is already visible but still far away.


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After a mixture of grassy terrain and rocky patches, I am getting closer to the final part.


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At the final ridge, now at the left side


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and later on shifting to the right side.


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I have now passed bm271 and this is sort of col between two flattened pics.

With the help of Sébastien's Strava-gps and pictures, I knew already where to go.

Beyond the col and after ± 70m you have to leave the ridge itself and continue left under the ridge, slightly descending.


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And then - after ± 30m - there she is: bm271bis!

Already chalked by Corinne Gourgeonnet who was here some days before.


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Bm271bis

I have searched for this marker four times in all those years since 2010.

You might check those searches on this page.




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Bm271bis

The main reason for not finding is that the Treaty of 1858 states a wrong distance between bm271 and 271bis. It says 360m while in reality the distance is ± 200m


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Bm271bis with myself.


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I return to the ridge but halfway I look back. My red-white pole is standing at the spot of bm271bis.


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Now I am back at the ridge itself.


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I return to bm271bis and make a small cairn.


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On the ridge I continue ± 75m E to revisit this metal plate.


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It has the shape of Navarra


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and reads the txt

G.M. Sangüesa
Monte Añelarra
Altitud 2345 m
28-6-1981
                         Pelegrin

Angel Serrano wrote me once that it is a non-official plaque of the "Grupo de Montaña  Sangüesa", apparently a mountaineers-club.

See also 1-9-2013


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Then I return, not without redoing bm271.

This picture: looking W with the mini-col in front and then the ridge climbing slowly


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to - zoom-in - a geodetic marker.

That is approximately above bm271 which is at the south-side of the ridge.


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First to bm271


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Bm271

Who paints these markers, one wonders.


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Bm271


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Now on top of the ridge the geodetic marker.


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And then there is a mysterious cross, close to bm271 which was discovered by Corinne Gourgeonnet a few days ago.


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I am content and return


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the same way.


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Close to the large meadow below Pic d'Arlas, I watch a signpost


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forbidding entrance. But who cares?


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Now the meadow is close and soon I will be back at my car.

The next day I will drive to Pont d'Espagne where I will meet Carlos & Conchita to walk to Refuge Wallon.


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