Rubberduck
New member
I'm doing a bit of world-building (hobby where you build a world from scratch, making maps, putting in cultures, etc) and I've started to place rivers on my world. However, I'd kinda like to know how large those rivers aught to be. So I'm looking for data on water yields (the amount of water that an area supplies to local streams, rivers and other watercourses). Any good resources out there on the net?