Cleft Ledge is a flat-topped ridge 1 miles (1.6 km) long and 0.3 mile (0.482802 km) wide between Shaw Trough

Shaw Trough

Shaw Trough is a primary elongate trough in the Labyrinth of Wright Valley, McMurdo Dry Valleys, extending W-E across the north part of the feature. Named by Advisory Committee on Antarctic Names after John Shaw, Department of Geography, University of Alberta, Edmonton, Canada, who, with Terry R...

 and Healy Trough

Healy Trough

Healy Trough is a primary elongate trough in the Labyrinth of Wright Valley, McMurdo Dry Valleys, extending diagonally SW-NE across the east part of the feature. Named by Advisory Committee on Antarctic Names after Terry R...

 in the Labyrinth

Labyrinth (Antarctica)

The Labyrinth is an extensive flat upland area which has been deeply eroded at the west end of Wright Valley, in Victoria Land. It was so named by the Victoria University of Wellington Antarctic Expedition because the eroded dolerite of which it is formed gives an appearance of a labyrinth....

 of Wright Valley

Wright Valley

The Wright Valley is the central one of the three large Dry Valleys in the Transantarctic Mountains, located west of McMurdo Sound at approximately . Wright Valley contains the Onyx River, the largest river in Antarctica, Lake Brownworth, the origin of Onyx River, and Lake Vanda, which is fed by...

, McMurdo Dry Valleys

McMurdo Dry Valleys

The McMurdo Dry Valleys are a row of snow-free valleys in Antarctica located within Victoria Land west of McMurdo Sound. The region is one of the world's most extreme deserts, and includes many interesting features including Lake Vida and the Onyx River, Antarctica's longest river.-Climate:The Dry...

. The ledge rises to 920 metres (3,018.4 ft) and is 0.3 mile (0.482802 km) northwest of Hoffman Ledge

Hoffman Ledge

Hoffman Ledge is an arcuate flat-topped ridge, 1.8 nautical miles long and 0.5 nautical miles wide, located west of Dais Col in the Labyrinth of Wright Valley, McMurdo Dry Valleys. The relatively level ledge rises to 1000 m and is bounded west and north by Healy Trough; cliffs and slopes...

. The name is descriptive and was recommended by the Advisory Committee on Antarctic Names

Advisory Committee on Antarctic Names

The Advisory Committee on Antarctic Names is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica...

 (2004) because a central north-south hanging valley nearly divides the ledge in half.