Beaded black lines mark troughs, notched lines mark scarp crests. The lineation circling unit mh is Kaʼan. The 'large crater' lc is Sky on Weeyo, and sp are 'small pits' or craters. The areas labeled bm and dm are made of bright material and dark material, respectively. The magenta areas labeled pm are patterned material, while the green areas labeled rm are rough material, and the blue areas labeled um are undifferentiated material. The eight subunits of Wenu, labeled ma to mh, are rolling topography units that might be smaller subunits of Wenu. (https://twitter.com/rnolter/status/1115010760315371521)

https://www.space.com/new-horizons-ultima-thule-flyby-geologic-frankenstein.html