Geological Chronicle
Rimae Kopff is a lunar graben structure spanning 250 kilometers in length across the lunar basalt crust. Formed by structural faulting and crustal extension, the trench cuts through terrain within the Riccioli quadrangle (LAC-73).
Officially cataloged by the International Astronomical Union at selenographic coordinates -14.6813° latitude and -88.1048° longitude, the rille designation notes: Named from nearby crater.