Seine River Steamers early vessels meant that positive traction by pulling on a chain against a deadman or anchor was much more effective. In the 1830s river travel was considered dangerous, so much so that insurers would put a 25 percent premium on cargoes and vessels travelling the route. The Seine is divided into three sections, the lower or Oise section, middle or Paris Section, and upper or Marne section. Ships enter the river at Le Havre through a bad tidal bore. (Victor Hugo's favourite daughter was killed while travelling in a small boat across the bore.) Oceangoing ships can travel to Rouen,
Seine–Oise–Marne culture Seine–Oise–Marne culture The Seine–Oise–Marne or SOM culture is the name given by archaeologists to the final culture of the Neolithic and first culture of the Chalcolithic in northern France and southern Belgium. It lasted from around 3100 to 2000 BCE and is most famous for its gallery grave megalithic tombs which incorporate a port-hole slab separating the entrance from the main burial chamber. In the chalk valley of the River Marne rock-cut tombs were dug to a similar design. Some have examples of megalithic art with images of axes, breasts and necklaces carved on their walls. Diagnostic artefacts include transverse