The crater area in selenochromatic Image (Si) with some landmarks (yellow/normal, red/pyroclastic). More infos here : https://www.gawh.it/main/selenocromaticaOblique view fromLunar Orbiter 3
The wall of Murchison is heavily worn and has completely disappeared in a wide gap to the southeast. The rim is most intact along the northeast part of the crater, but even there it is indented and irregular. Only a ridge remains of the rim shared by Pallas and Murchison, with gaps to the north and south. A low ridge from the east wall runs south to join the rim of Chladni. The crater floor has been flooded withlava and joins the Sinus Medii through the wide gap in the southeast wall.
Murchison crater and its satellite craters taken from Earth in 2012 at the University of Hertfordshire'sBayfordbury Observatory with the telescopes Meade LX200 14" and Lumenera Skynyx 2-1
By convention, these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Murchison.
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU".Space Science Reviews.12 (2):136–186.Bibcode:1971SSRv...12..136M.doi:10.1007/BF00171763.S2CID122125855.