When shooting landscapes in the Palouse, I like to use the layers of the rolling terrain to add depth to the image. As you can see in the image at the top of this post the contours of the hills help to show that the fog is in the distance. To me it is important to create as much depth as I can in a landscape by showing foreground as in the first layer of the field, midground where the barn is located and finally the background where the fog is viewed.
Using layers to create more interest in your landscapes gives your eyes the chance to keep moving through the image. The contours in the Palouse allow you to utilize this technique very effectively.