"Father of Men", existed before the birth of gods.
El is a crater on Ganymede. It has a small "pit" in its center. Craters with such a "central pit" are common across Ganymede and are especially intriguing since they may reveal secrets about the structure of the satellite's shallow subsurface. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On Ganymede they are named after gods and heroes of ancient Fertile Crescent people.
Image Source. Marker locations are approximate and may not always appear to align with image on map.