Geological Chronicle
Rimae Zupus is a lunar graben structure spanning 130 kilometers in length across the lunar basalt crust. Formed by structural faulting and crustal extension, the trench cuts through terrain within the Grimaldi quadrangle (LAC-74).
Officially cataloged by the International Astronomical Union at selenographic coordinates -15.4637° latitude and -53.7608° longitude, the rille designation notes: Named from nearby crater.