Geological Chronicle
Rimae Sulpicius Gallus is a lunar graben structure spanning 80 kilometers in length across the lunar basalt crust. Formed by structural faulting and crustal extension, the trench cuts through terrain within the Montes Apenninus quadrangle (LAC-41).
Officially cataloged by the International Astronomical Union at selenographic coordinates 20.654° latitude and 9.9913° longitude, the rille designation notes: Named from nearby crater.