Kies and Volcano Kies Pi

Flooded crater Kies (44 km) is one of many on Mare Nubium. It lies just over 100 km South of Bullialdus (not shown). The processing of this image has been pushed however to bring out the most interesting feature, the very gentlly sloping volcanic dome of Kies Pi. Alhough the diameter of this long extinct volcano is ~10 km, it is only hundreds of metres in height. Pi's caldera is quite evident. An unnamed wrinkle ridge, resulting from buckling of the basaltic plain, crosses in from the North.