Soyuz-17 Cliff (-79.5167°N 167°W) is a prominent rock cliff, 3.5 nautical miles (6 km) long, on the north side of Carlyon Glacier in the Cook Mountains. The cliff is 4 nautical miles (7 km) west-northwest of Cape Murray and rises to c. 500m (1,600feet). Named after the Soviet spacecraft Soyuz 17 of January 17, 1975.