Harzé - La Gleize. Geological map of Wallonia. 49/7-8

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 first edition published in 1899 (Gustave Dewalque) at the scale of 1/40.000 by the "Commission Géologique de Belgique" and the second one, published in 1959 (Asselberghs & Geukens) at the scale of 1/40.000 by the Geological Survey of Belgium.Révision et 3ème éditionCarte géologique (lithostratigraphique) sur fond topographiqueProgramme de révision des cartes géologiques de Wallonie. Recherches collectives d'intérêt général.1:10.000 (manuscrits. Publication à l'échelle 1:25.000