FR 378 Boucau Feu Postérieur latitude 43° 31' 36.3" N longitude 1° 30' 49.5" W Located on the south bank of L'Adour, 150 m east southeast of the front light, probably visible from the Avenue de l'Adour, which runs close to the bank. ARLHS # FRA-807 (D 1387.21)
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