Asgard (Callisto)
Norse; the home of the gods.
A large ringed feature is a cryptic ringed features. On Callisto they are named after places (other than rivers, valleys and ravines) from myths and folktales of cultures of the Far North.
Image Source. Marker locations are approximate and may not always appear to align with image on map.
Asgard
32.2° N 220.1° E