It was remapped during 1926–29 by Discovery Investigations (DI) personnel and renamed "West Cumberland Bay".
[1] Cumberland West Bay has a complex coastline, many of whose features have been charted and individually named.
[2] The Crutch is a saddle-shaped col on a ridge located 1.5 nautical miles (3 km) northwest of Larsen Point.
[3] Jason Island, named for the ship, is located 1 nautical mile (2 km) north of Larsen Point.
In 1957, UKAPC renamed the feature after the Carlita, a whale catcher built in 1907 and owned by the Compañía Argentina de Pesca.
It was probably named for Lieutenant Commander G. M. Mercer, Royal Naval Reserve, captain of the DI research ship William Scoresby.
[13] This article incorporates public domain material from websites or documents of the United States Geological Survey.