Henk Kars was appointed as first Chair of Archaeometry in The Netherlands in 1994. From 2002 he was full time professor at the Vrije Universiteit Amsterdam, interim Director of CLUE, and founder and Managing Director of the Institute for Geo- and Bioarchaeology. This festschrift volume incorporates original publications in the field straddling the Sciences and Humanities produced by various former PhD-students, post-docs and colleagues. Landscape archaeology is described in the first cultural landscapes of Europe as a mysterious outcome, while the historical record of surface water flow of the central Netherlands is reviewed. The south-western Netherlands are historically analysed since military inundations during the Eighty Year's War. The palaeolandscapes of the eastern Netherlands are reconstructed to locate the origins of the river Linge. The long time scale is considered in a 220.000 year overview of landscape development and habitation history in Flevoland. Bioarchaeology is represented in a review of the current state of isotope research in The Netherlands and a correlation between bio- and geochemistry meets an analysis of organic residues in copper corrosion products. Archaeometry reveals the colour of Dutch archaeological textures. The relevance of a quartzite Neolithic axe found near to Huizen, The Netherlands is described. CLUES is an international scientific series covering research in the field of culture, history and heritage which have been written by, or were performed under the supervision of members of the research institute CLUE+. This publication is part of the CLUES series Contents Interdisciplinary collaboration between the Humanities and Sciences. Fifteen years of Geo- and Bioarchaeology teaching and research at the Vrije Universiteit Amsterdam S.J. Kluiving, L.M. Kootker& R.A.E. Hermans The first cultural landscapes of Europe: A true enigma J.C.A Kolen & B. Oosterwijk The Wet Heart of the Netherlands Guus J. Borger & Sjoerd J. Kluiving Bones, teeth and invisible tracers. The current state of human bioarchaeological isotope geochemistry research in The Netherlands L.M. Kootker & G.R. Davies On the 'Quartzite Palaeolithic' of the Naarder Eng (Huizen, the Netherlands). Relevance of a quartzite Neolithic axe find M. Langbroek Flooded, flattened and rebuilt archaeological sites. The case of strategic inundations during the Eighty Year's War and how the archaeology developed after reclamation of the landscape Adriaan de Kraker Many shades of brown. The condition and colour of Dutch archaeological textiles from dryland sandy soils, bogs, and the sea Ineke Joosten & Maarten R. van Bomme Carbon and nitrogen isotopic variation in bone collagen within the human skeleton Els Dauven, Caroline Montrieux, Lauren O'Boyle, Peter Ditchfield & A. Mark Pollard Landscape and hominin habitation history of Flevoland (central Netherlands) D.F.A.M. van den Biggelaar, S.J. Kluiving, R.T. van Bal & C. Kasse Reconstructing palaeolandscapes in the eastern Rhine-Meuse delta (The Netherlands). Finding the starting point of the Linge channel? J.G.M. Verhagen, F. van Hemmen, J.R. Mulder & S.J. Kluiving Where bio- and geochemistry meet. Organic residues in copper corrosion products? K. Merriman, P. Ditchfield, D. Goodburn-Brown & A.M. Pollard