​ Within the framework of a geoarchaeological project to reconstruct the environmental conditions in the hinterland of an archaeological excavation at Chekka (Northern Lebanon) a geoscientific study was performed to identify the landscape development in that area since Bronze Age. For this purpose suitable sedimentary traps (valley fills, alluvial fans, karstic depressions) were drilled in 2022 to get insights into the sediment and pollen records. The cores were sampled for environmental analyses (sedimentology, pollen, macrophytes) and age determinations (charcoal, OSL), in which the sedimentological results are presented here. Further samples of the main rocks occurring within the catchment areas of the drilled localities were taken for comparison with the cores. Field observations on geomorphology and first sedimentological results of the core samples show mostly fluvial muddy deposits of the wetland type for the valley fills. Additionally, sandy or gravelly sediments from channel or side bars occur. These sediments were delivered from larger catchments ranging from the coast to Mount Lebanon consisting of Mesozoic rocks (limestones, dolostones, chalks, basalts, sandstones). Near to the actual coastline a prior river mouth into the sea was detected for the Nahr-El-Jaouz river. Alluvial fans occurring in the hilly coastal area exhibit alternating sequences of very coarse grained and fine sediments formed by flash floods, mud flows, and normal fluvial activity. Main source rocks are chalks and marly chalks of Upper Cretaceous Age. More or less silty to clayey sediments of reddish color can be observed within the karstic depressions representing weathered residues of Cretaceous limestones and Jurassic dolomites from the local catchment areas.