Geological Chronicle
Rima T. Mayer is a lunar graben structure spanning 67.81 kilometers in length across the lunar basalt crust. Formed by structural faulting and crustal extension, the trench cuts through terrain within the Kepler quadrangle (LAC-57).
Officially cataloged by the International Astronomical Union at selenographic coordinates 13.2584° latitude and -31.3709° longitude, the rille designation notes: Named from nearby crater.