https://www.cas-gruyere.ch/fr/cabanes/cabane-des-portes/ links to https://map.geo.admin.ch/?lang=en&topic=ech&bgLayer=ch.swisstopo.pixelkarte-farbe&layers_visibility=false&layers_timestamp=18641231&E=2565845.05&N=1159887.43&zoom=11, so i guess this must be https://www.openstreetmap.org/way/328757252