南龍達訥山脈
Kvalfinnen Ridge () is a ridge, high, standing on the west side of Byrdbreen and north of Isachsen Mountain in the Sør Rondane Mountains of Antarctica. It was mapped by Norwegian cartographers in 1957 from air photos taken by U.S. Navy Operation Highjump, 1946–47, and named Kvalfinnen (the whale fin) because of its shape.