GEOGRAPHIC NAMES OF ANTARCTICA 



inson has been applied to a cape in 66°52'S., 

 63°43'W. 



Robke Berg: see Ropke, Mount. 



ROCA, CAPE: cape about 1.8 mi. NW. of Cape 

 Davidson at the W. end of Laurie I., in the South 

 Orkney Is.; in 60°45'S., 44°49'W. The W. end of 

 Laurie I. was sighted by Capt. George Powell and 

 Capt. Nathaniel Palmer during their joint cruise 

 in December 1821. Cape Roca was charted by the 

 ScotNAE, 1902-4, under Bruce, and named for 

 Julio A. Roca, Pres. of Argentina, 1880-86 and 

 1898-1904. Not adopted: Cape Rock. 



ROCA ISLETS: group of islets about 2 mi. NW. 

 of the Argentine Is.; lying off the W. coast of 

 Palmer Pen.; in 65°12'S., 64°20'W. Disc, by the 

 FrAE, 1903-5, under Charcot, and named by him 

 for Julio A. Roca, Pres. of Argentina, 1880-86 and 

 1898-1904. Not adopted: Roca Islands, Rocca 

 Islands. 



Roca Nueva: see New Rock. 



Roca Reef; Roca Rock: see Rocca Reef. 



Rocca Islands: see Roca Islets. 



ROCCA REEF: two small, low rocks which lie 

 4.5 mi. WSW. of Cape Alexandra, and 1.5 mi. off 

 the S. coast of Adelaide I., in the N. part of Mar- 

 guerite Bay; in 67°47'S., 68°47'W. Disc, in 1909 

 by the FrAE under Charcot, and named by him 

 for Monsieur Rocca, an acquaintance in Punta 

 Arenas. Not adopted: Roca Reef, Roca Rock. 



Rocher Conique: see Conical Rock. 



Rocher Noir: see Tristan Islet. 



Rocher Nouveau: see New Rock. 



Rockers de I'Orn: see Ornen Rocks. 



Rocher Voile: see Sail Rock. 



Rock, Cape: see Roca, Cape. 



Rockby: see Rocky Bay. 



ROCKEFELLER MOUNTAINS: group of low- 

 lying, scattered granite peaks and ridges, almost 

 entirely snow-covered, lying in the interior of Ed- 

 ward VII Pen.; in about 78°00'S., 155°22'W. Disc, 

 by the ByrdAE on Jan. 26, 1929, and named by 

 R. Adm. Richard E. Byrd for John D. Rockefeller, 

 Jr., a patron of the expedition. 



ROCKEFELLER PLATEAU: the Marie Byrd 

 Land portion of the Antarctic plateau; centering 

 in about 80°S., 135°W. Much of its extensive, ice- 

 covered surface averages from 2,500 to 4,500 ft. in 

 elevation. Disc, by R. Adm. Richard E. Byrd, in 

 1934 and named for John D. Rockefeller, Jr., patron 

 of the Byrd expeditions. 



ROCK PILE PEAKS : small peninsula consisting 

 of a jumbled mass of rocky peaks and ridges jut- 

 ting from the E. coast of Palmer Pen. between 

 Mobiloil and Solberg Inlets; in 68°25'S., 65°10'W. 

 This feature was photographed from the air by 

 Sir Hubert Wilkins on Dec. 20, 1928, and by Lin- 

 coln Ellsworth on his flight of Nov. 23, 1935. Much 

 greater detail, however, was obtained in aerial and 

 trail pictures taken in 1940 by members of the 

 East Base of the USAS. The name was given by 

 the US-SCAN for this feature which, because of 

 its peculiarly jumbled appearance, stood out as a 

 notable and easily distinguishable landmark on 

 the aerial photographs of the USAS. As such, it 

 was particularly valuable in the work of correla- 

 tion. Not adopted: Rock Pile Point. 



Rock Ridge: see Red Rock Ridge. 



Rock X: see X, Rock. 



ROCKY BAY: small bay, with numerous rocks 

 lying in the bay and at its entrance, situated im- 

 mediately N. of Ducloz Head, along the S. coast 

 of South Georgia; in 54°29'S., 36°39'W. The pres- 

 ence of this bay seems to have been first noted in 

 1819 by Adm. Thaddeus Bellingshausen, who 

 roughly charted a small inlet in this approximate 

 position. The name was in use prior to 1930, 

 and was probably applied by sealers and whalers 

 working in the area. Not adopted: Rockby, Rok- 

 Bucht [German]. 



Rocky Point: see Carey Point; Dunlop, Cape; 

 Kanin Point. 



ROCKY POINT: rocky point marking the SE. 

 extremity of Vindication I., South Sandwich Is.; 

 in 57°04'S., 26°45'W. It was named by DI per- 

 sonnel following their survey in 1930. 



Rodeada, Isla: see Beta Island. 



Rbdbn: see Red Island. 



ROGERS GLACIER: channel glacier about 10 

 mi. wide and of undetermined length, flowing NW. 

 from the continental ice and entering the E. side 

 of Baker Three Gl. close S. of McKaskle Hills, on 

 Ingrid Christensen Coast; in about 70°00'S., 

 72°30'E. Delineated in 1952 by John H. Roscoe 

 from aerial photographs taken by USN Op. Hjp. 



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