Odysseus is the largest crater on Saturn's moon Tethys. It is 445 km across, more than 2/5 of the moon's diameter, and is one of the larger craters in the Solar System. It is situated in the western part of leading hemisphere of the moon—the latitude and longitude of its center are 32.8°N and 128.9°W, respectively. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On Tethys they are named after people and places from Homer's Odyssey.
Image Source. Marker locations are approximate and may not always appear to align with image on map.