Thank you both. I wanted it to look like someplace found at random. Just off a trail, or on a long hike. The rocks and boulders are a photograph of a rocky cliff face that's been mapped onto the blank terrain like a skin. It's a feature of Terragen that I really like.
The reason why the sun sets in the evening is because it wants to see the sunrise in the morning. I rise in the morning because I want to see them both. RvdB