Dorsa Ewing [SEP] located on astronomical body
Dorsa Ewing
Dorsa Ewing is a wrinkle ridge at in Oceanus Procellarum on the Moon. It is 262 km long and was named after American geophysicist William Maurice Ewing.
Owned by Mrs. D.V.L and Mr. Y.N.Y since the 3rd of September 2017.
Wichmann (crater)
Wichmann is a bowl-shaped lunar impact crater. It was named after German astronomer Moritz L. G. Wichmann. It is located in the southern half of Oceanus Procellarum on a low plateau formed from a wrinkle ridge, Dorsa Ewing. 
There is a small mountain chain to the north that curves away to the west that is designated Wichmann R; this is most likely the rim of a worn crater that was buried by the lava flow forming the mare. Additional low mountains lie to the south of