Sunfix Glacier is a tributary glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

, 15 nautical miles (28 km) long and 2 nautical miles (3.7 km) wide, draining east-northeast between Grimley and Lurabee Glaciers into Casey Glacier

Casey Glacier

Casey Glacier is a glacier wide, flowing east into Casey Inlet on the east coast of Palmer Land. It was discovered by Sir Hubert Wilkins on an aerial flight of December 20, 1928. Wilkins believed the feature to be a channel cutting completely across the Antarctic Peninsula, naming it Casey...

, in northern 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...

. Photographed from the air by Ronne Antarctic Research Expedition

Ronne Antarctic Research Expedition

The Ronne Antarctic Research Expedition was an expedition from 1947-1948 which researched the area surrounding the head of the Weddell Sea in Antarctica.-Background:...

 (RARE) on December 22, 1947. Surveyed by Falkland Islands Dependencies Survey (FIDS) in November 1960. The name derives from the important sun fix for latitude which was observed by FIDS at the head of this glacier, an area where cloud seldom allows such observation.