It contains the Goethe Basin, whose diameter of at least 400 kilometers makes it the sixth-largest impact basin observed on Mariner 10 images Strom Trask Guest 1975 Trask and Guest 1975 Strom 1979 (Murray and others, 1974; Boyce and Grolier, 1977; Strom, 1977) and the seventh-largest known with the discovery of Skinakas Basin.