Louveigné-Spa. Geological map of Wallonia. 49/3-4

New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using previous scientific data produced since the previous editions, in 1898 (at the scale of 1/40.000, by Gustave Dewalque) and the second one, in 1958 (at the scale of 1/25.000 by Paul Fourmarier).révision, 3ème édition complèteCarte géologique (lithostratigraphique) sur fond topographiqueRévision de la carte géologique de la Wallonie. Recherches collectives d'intérêt général1:10.000 (manuscrits. Publication à 1:25.000