The Sør Rondane Mountains are a group of mountains about 100 miles (160 km) long with main peaks rising to 3400 m, between the Queen Fabiola Mountains and Wohlthat Mountains in Queen Maud Land. They were discovered and photographed from the air by members of the Lars Christensen Expedition (LCE) on February 6, 1937, and named after Rondane, a mountain massif in southern Norway. The mountains and their constituent features were mapped in greater detail and named in 1957 by Norwegian cartographers working with air photos taken by U.S. Navy Operation Highjump, 1946–47.