I have visited this triline twice, once in 2011 and once in 2018 as part of the IBRG BELEX trip. This report is from the 2018 visit. Details of my 2018 visit are here. Like BEDELU the borders at this triline (not tripoint) are complicated because of the condominium arrangements regarding the shared ownership of the Moselle between Germany and Luxembourg. Above the triline the river is shared, hence like BEDELU there are 3 points of interest.
DELUFRLU is the western technical tripoint and is where the condominium meets the border between Luxembourg and France in middle of the Moselle. DEDELUFR is the eastern technical tripoint where the borders of France and Germany meet on the side of the lock. In between these 2 points is the triline (not one single point) DEFRLU. This triline is approximately 114 m long and cuts across the island in the Moselle.
This is area is really interesting to visit. It is not easy to identify the particular points in the map above. DEDELUFR bring the most straightforward. It is possible to approximate the position of the triline and the whereabouts of DELUFRLU. In 2011 I managed breifly to access the island was not able to explore. In 2018, access to the lock side incurred the wrath of the French lock keeper.
Nevertheless, lots to see and explore, with the bridge between Luxembourg and Germany, the border between France and Germany with road and rail crossings and old border markers to discover. Being part of the IBRG visit in 2018 meant I found some markers that eluded me in 2011, but also I found that an old DE/FR marker had disappeared in the interim.
The French geo portal map below incorrectly draws the border between France and Luxembourg at the edge of the island whereas it ought as indicated on the Luxembourg map follow the Thalweg (middle of the river).
Views of the triline area
France – Germany side
Our first stop was a place I visited in 2018 however, in 2011 there was no bi national library but there was a border marker which disappeared before my next visit. In 2011 whilst walking alongside the lock I was able to quickly cross over to the island before being called back by the lock keeper. It was the closest I was able to get to the triline.
Schengen – a celebration of the European ideal
Date of Visit: July 2011