In this photo the most evident formation is the Bullialdus crater with a diameter of 61 km located on the western edge of the Mare Nubium, while on the eastern side of the Mare Nubium near the lower right corner of the photo there is Rupes Recta, a fault with a length of 110 km and about 300 meters deep.
West of Bullialdus on the eastern side of the Mare Humorum you can see a series of parallel rilles called Rimae Hippalus 240 km long and 4 km wide.