Pettus Glacier is a narrow deeply entrenched 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...

 9 nautical miles (17 km) long, which flows north from Ebony Wall

Ebony Wall

Ebony Wall is a dark, nearly vertical rock wall which rises about 400 m at the head of Pettus Glacier. The wall is about 2 nautical miles long and forms a part of the west escarpment of Detroit Plateau near the base of Trinity Peninsula...

 into Gavin Ice Piedmont

Gavin Ice Piedmont

Gavin Ice Piedmont is an ice piedmont in Trinity Peninsula, about 15 nautical miles long and between 3 and 6 nautical miles wide, extending from Charcot Bay to Russell West Glacier. Mapped from surveys by Falkland Islands Dependencies Survey . Named by United Kingdom Antarctic Place-Names...

 between Poynter Hill

Poynter Hill

Poynter Hill is a conspicuous hill, height , standing 8 nautical miles east-southeast of Cape Kjellman on the west side of Trinity Peninsula. Charted in 1948 by the Falkland Islands Dependencies Survey, it was named by the United Kingdom Antarctic Place-Names Committee in 1950 after Mr...

 and Tinsel Dome

Tinsel Dome

Tinsel Dome is a small ice-covered hill, 700 m, standing between Aureole Hills and Bone Bay on Trinity Peninsula. Charted in 1948 by the Falkland Islands Dependencies Survey who gave this descriptive name.-Map:...

, Trinity Peninsula

Trinity Peninsula

Trinity Peninsula is the extreme northern portion of the Antarctic Peninsula, extending northeastward for about from a line connecting Cape Kjellman and Cape Longing. Dating back more than a century, chartmakers used various names for this portion of the Antarctic peninsula, each name having some...

. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) for Robert N. Pettus, aircraft pilot with Falkland Islands and Dependencies Aerial Survey Expedition (FIDASE), 1956-57.

Map

• Trinity Peninsula. Scale 1:250000 topographic map. Institut für Angewandte Geodäsie and British Antarctic Survey, 1996.