Mythological mother of the Kikuyu people (Kenya), wife of Gikuyu, the ancestor of the people, created by god Ngai, who took him on top of Kirinyaga (Mount Kenya) to show all the land given for him.
A crater is a circular depression likely created by an impact event. On Rhea they are named after people and places from creation myths (with Asian emphasis).
Image Source. Marker locations are approximate and may not always appear to align with image on map.