North is to the top and the image is centered at 22.8 degrees north latitude and 109.5 degrees west longitude. The color images are illuminated from almost directly behind the spacecraft. By combining both types of images, Galileo scientists can better understand the relationships between the different surface materials and the underlying geologic structures. For example, in the center toward the top of the picture, the edge of the caldera, or volcanic crater, is marked by the black flows, and it coincides with the edge of a plateau. Here the red material follows the base of a mountain, which may indicate that sulfurous gases are escaping along a fault associated with the formation of the mountain.
Scientists can use the lengths of the shadows cast to estimate the height of the mountains.
North is to the top of the image, which is centered at 33.7 degrees north latitude and 81.9 degrees west longitude. The color images are illuminated from almost directly behind the Galileo spacecraft. Lower resolution context was provided by images acquired during earlier Galileo orbits. Numerous linear features in the center of the mosaic and toward the poles may have formed in response to tides strong enough to fracture Europa's icy surface. Bright white spots near the western limb are the ejecta blankets of young impact craters.