Kanehekili Fluctus is a lava flow field on Jupiter's moon, Io. This lava field covers roughly 34,500 square kilometres The hotspot was detected by the Galileo Solid State Imaging experiment on orbits by Galileo. (wikipedia entry)
A fluctus is a terrain covered by outflow of liquid. On Io they are named after a name related to a nearby named feature; alternatively words for fire, sun or thunder; volcano gods, goddesses and heroes, or mythical blacksmiths.
Image Source. Marker locations are approximate and may not always appear to align with image on map.