Rivers Are Jerks

[Pedro]

If you wanted them to split again you could always use a lake to divert the river in 2 different ways, lake would probably be big or in a elevated area.

Rivers go from up to down elevation wise, using the quickest path. The equator doesn't influence the rivers direction. Rivers can cut path through mountains if its the only way out, Klamath, Columbia and Pit, all rivers that cut through the Cascade Range.

A note on the "Cutting through mountains" is that the river will fill up before the mountains if there is no other place to go and when it reaches the lowest point in the mountains it wil overflow right there and eventuall erode it down to where there is no longer a lake in front. You've got to think about which point in that you want the map to show since it doesnt happen overnight.

Also, lakes NEVER (naturally) spit out more than one river as if there were two equally low spots where the lake could empty out, one will eventually erode more and the other will dry up, however you can have as many rivers as you want feeding into the lake