Geological Chronicle
Rimae Maestlin is a lunar graben structure spanning 71 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 2.8802° latitude and -40.4828° longitude, the rille designation notes: Named from nearby crater.