Geological Chronicle
Rima Marius is a lunar graben structure spanning 283.54 kilometers in length across the lunar basalt crust. Formed by structural faulting and crustal extension, the trench cuts through terrain within the Aristarchus quadrangle (LAC-39).
Officially cataloged by the International Astronomical Union at selenographic coordinates 16.3723° latitude and -49.5418° longitude, the rille designation notes: Named from nearby crater.