Appleton is a heavily eroded lunar crater that lies in the northern hemisphere on the far side of the Moon. To the northwest are the craters Von Neumann and Campbel. The smaller Golovin lies to the northeast, while further to the southwest is the Mare Moscoviense. The crater wall and interior have been heavily eroded by many subsequent impacts, leaving the features rounded and irregular. A pair of craters lie across the southwestern rim, and two small craterlets lie along the eastern rim. The interior floor is irregular and contains many tiny craterlets.