Night’s Dawn universe
Locations:
Juliffe is a huge river draining most of Amarisk continent, on Lalonde.
Its role as means of cheap and simple transport (Juliffe paddleboats) in its vast 1.5 Mm² basin was a deciding factor for the colonization effort.
At its mouth, between Durringham in the south and the Hultain Marsh in the north, it is 17 km wide.