Mount Tricorn is a distinctive massif whose vertical rock faces rise to 1,120 m and surround a snow-covered interior which is lower except for a 1,610 m peak

Summit (topography)

In topography, a summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a local maximum in elevation...

 in the northwest portion, standing at the head of Wright Inlet

Wright Inlet

Wright Inlet is an ice-filled inlet receding westward between Capes Little and Wheeler along the east coast of Palmer Land. The inlet was photographed from the air in 1940 by the United States Antarctic Service and in 1947 by the Ronne Antarctic Research Expedition under Ronne. Named by Ronne...

 on the east coast of Palmer Land

Palmer Land

Palmer Land is that portion of the Antarctic Peninsula which lies south of a line joining Cape Jeremy and Cape Agassiz. This application of Palmer Land is consistent with the 1964 agreement between US-ACAN and UK-APC, in which the name Antarctic Peninsula was approved for the major peninsula of...

. Discovered by members of the United States Antarctic Service (USAS) in a flight from East Base on December 30, 1940, and named for its resemblance to a gigantic tri-cornered hat.