I started out with using clods and difference clouds to produce a heightmap and rendered it. It looked nice but there where no good lookingriver beds around. So I gave Wilbur a shot and applied the incise flow and tweaked the elevation a bit. But I couldn´t stamp out all the artifacts left by the cloud operation.Perhaps that is the reason for the river problem. I´ve got to give this a second try on a much smaller scale. The coast will be watched for a second approach. For now I´ll keep going.