The Dommel is a small river in Belgium and the Netherlands, left tributary of the Dieze. It is 120 km long, of which 85 km in the Netherlands. The Dommel takes in water from the Keersop, Tongelreep, Run, Gender and Kleine Dommel streams and merges at 's-Hertogenbosch with the Aa stream to form the river Dieze, which subsequently flows towards the Meuse. The main cities and towns along the Dommel's course are Peer, Neerpelt, Valkenswaard, Dommelen, Eindhoven, Son en Breugel, Sint-Oedenrode, Boxtel, Sint-Michielsgestel and 's-Hertogenbosch. Drainage basin The drainage basin of the Dommel belongs to that of the Meuse. To the west of is the basin of the Donge, which also belongs to that of the Meuse. To the south the basin of the Dommel borders that of the Schelde. To the east is that of the Aa. Further to the south a number of rivers flow into the Meuse much further upstream. History Former glory The Dommel often looks like a brook nowadays, but it has many geographical features that only larger rivers have. These are the width of the rivers' valley, and large meanders from the Last Glacial Period. In the past, there was talk about the Romans navigating the Dommel. Later, the near forests were cut down, and so the river became more shallow and started to meander. Water board In 1863 a Water board (Waterschap) was founded for the Dommel. It had authority in all the municipalities where the Dommel flowed. One of its first priorities was to prevent flooding, especially between 's-Hertogenbosch and Boxtel. If possible, it wanted to canalize the same stretch, and to improve its navigability, but for the latter a lock would be required. C. 1865, the water board diverted the Dommel through the western city moat of 's-Hertogenbosch and made a sluice in the left dyke of the Dieze. Course North of the Bocholt-Herentals canal The source of the Dommel is in the Kempens Plateau, part of which forms the Hoge Kempen National Park. The exact source is south of Wauberg, near Peer, Belgium. Other brooks on this plateau flow directly to the Meuse, or flow to the Schelde via the Zwarte Beek and the Demer. The source of the Dommel is 77 metres above sea level. On its course it drops 75 m. Just west of Peer, the Dommel flows through the small nature reserve Mullemer Bemden, where it is