Surface detail comparison, Hayden Valley, Yellowstone National Park. (left) A color-enhanced Landsat satellite image draped onto a DEM. (right) Detail from Berann’s panorama. The numbered features are: 1) Hayden Valley, a large meadow dotted with trees and geysers; 2) Yellowstone Lake; 3) Lower Yellowstone Falls; and, 4) Damage from a 1988 forest fire is visible only on the more recent Landsat image.