Geological Chronicle
Rima Agatharchides is a lunar graben structure spanning 54.25 kilometers in length across the lunar basalt crust. Formed by structural faulting and crustal extension, the trench cuts through terrain within the Pitatus quadrangle (LAC-94).
Officially cataloged by the International Astronomical Union at selenographic coordinates -20.3784° latitude and -28.5643° longitude, the rille designation notes: Named from nearby crater.