Biggest problem with this type of mapping system is that most of what appears to be river courses gets covered over by what appears to be ocean, sea, and coastal waters. Currently, I am drawing in the rivers that are on the land parts and is proving to be a headache. Look at the terrain and you can see where the rivers run.

But wouldn't you like to see the rivers instead of imagining them?

I would love some pointers on software (preferably free) that can find these river runs and draw them for me. I have been experimenting with height field plainers, but they ain't working too good.

With either Photoshop or Paint Shop Pro (psd & psp, respectively) I can easily draw in roads, cities, towns, et. al.

Anyone know of anything that can analyze terrains and draw rivers?

rmfr