Contours and colors

This remarkable landscape is in the John Day Fossil Beds National Monument in eastern Oregon. Fossils found here span 40 million years. It's truly hard to get your mind around that amount of time. I took this in the 1990's with my medium format film camera, the Mamiya RZ 67 with a 250mm lens. This was equivalent to about a 150mm medium telephoto. I always used a tripod back then, and although the settings were unrecorded, they were probably 1/4 second, f/32, and I definitely used Fujichrome Velvia which was 50 ISO. The transparency was scanned by a high-end Imacon scanner to digitize it. These colors have not been enhanced in Photoshop. Note how vibrant they are under an overcast sky.