Sentinel Buttress

Sentinel Buttress (

64°4′S 58°8′W / 64.067°S 58.133°W / -64.067; -58.133Coordinates: 64°4′S 58°8′W / 64.067°S 58.133°W / -64.067; -58.133) is a prominent crag containing a volcanic breccia sequence, rising to 535 m east of Palisade Nunatak at the head of Rohss Bay, James Ross Island. So named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1987 from its commanding position in the area.

 This article incorporates public domain material from the United States Geological Survey document: "Sentinel Buttress". (content from the Geographic Names Information System)