Not in terms of the "guide" linked to. It looks at rivers as something creeping up from the ocean to higher lands. It's a perspective where a river travels upst

Not in terms of the "guide" linked to. It looks at rivers as something creeping up from the ocean to higher lands. It's a perspective where a river travels upstream, even if it flows downstream, if that makes sense. The author is saying two streams travelling up never split, only merge. I'm saying they do split [0]. An upstream split is a downstream merge. [0] https://www.openstreetmap.org/#map=15/45.7293/4.8128 https://www.openstreetmap.org/#map=15/45.7293/4.8128