Traffic Circle is a 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...

-filled expanse 500 m high, situated south of Mount Ptolemy and medially on Antarctic Peninsula

Antarctic Peninsula

The Antarctic Peninsula is the northernmost part of the mainland of Antarctica. It extends from a line between Cape Adams and a point on the mainland south of Eklund Islands....

 between Marguerite Bay

Marguerite Bay

Marguerite Bay or Margaret Bay is an extensive bay on the west side of the Antarctic Peninsula, which is bounded on the north by Adelaide Island and on the south by Wordie Ice Shelf, George VI Sound and Alexander Island. The mainland coast on the Antarctic Peninsula is Fallières Coast. Islands...

 and Mobiloil Inlet

Mobiloil Inlet

Mobiloil Inlet is an ice-filled inlet, nurtured by several northeast and east flowing glaciers, lying between Rock Pile Peaks and Hollick-Kenyon Peninsula along the east coast of Antarctic Peninsula. Discovered by Sir Hubert Wilkins in a flight on December 20, 1928, and named by him after a...

. Hub Nunatak

Hub Nunatak

Hub Nunatak is a beehive-shaped nunatak in the lower part of Lammers Glacier on Antarctic Peninsula. The feature is conspicuously located near the center of the Traffic Circle, a glacial depression which is notable for the series of prominent glaciers which flow toward, or emanate from it in a...

 rises from the center of the Traffic Circle. From this position, five glacial troughs radiate like the spokes of a wheel. One connects on the north with Gibbs Glacier

Gibbs Glacier

Gibbs Glacier is a glacier, 15 nautical miles long, flowing southeast into the north part of Mercator Ice Piedmont on the east side of Antarctic Peninsula. This feature together with Neny Glacier, which flows northwest, occupy a transverse depression between Mercator Ice Piedmont and Neny Fjord...

 and Neny Glacier

Neny Glacier

Neny Glacier is a glacier flowing northwest into the north part of Neny Fjord on the west side of Antarctic Peninsula. This feature together with Gibbs Glacier, which flows southeast, occupy a transverse depression between Neny Fjord and Mercator Ice Piedmont on the east side of Antarctic Peninsula...

, leading to Neny Fjord

Neny Fjord

Neny Fjord is a fjord which is 10 miles long in an east-west direction and 5 miles wide, between Red Rock Ridge and Roman Four Promontory on the west coast of Graham Land, Antarctica.-History:...

. Another connects on the west with Lammers Glacier

Lammers Glacier

Lammers Glacier is a large glacier flowing east along the north side of Godfrey Upland into the Traffic Circle and Mercator Ice Piedmont, on the east coast of Graham Land...

 and Windy Valley

Windy Valley

Windy Valley is a glacier-filled valley opening onto the north part of Mikkelsen Bay on the west coast of Graham Land and providing access via its head to the plateau, Lammers Glacier and the Traffic Circle area...

, leading to Mikkelsen Bay

Mikkelsen Bay

Mikkelsen Bay is a bay, 15 miles wide at its mouth and indenting 10 miles, entered between Bertrand Ice Piedmont and Cape Berteaux along the W coast of Graham Land, Antarctica. First seen from a distance in 1909 by the French Antarctic Expedition under Jean-Baptiste Charcot, but not recognized as a...

. A third, Cole Glacier

Cole Glacier

Cole Glacier is a glacier on the east side of Godfrey Upland, long, flowing north-northeast into the Traffic Circle, in southern Graham Land. It was first seen by the United States Antarctic Service in 1940, but not named...

, trends southwest along Godfrey Upland

Godfrey Upland

Godfrey Upland is a small remnant plateau with an undulating surface and a mean elevation of 1,500 m in south-central Graham Land. It is bounded by Clarke, Meridian, Lammers and Cole Glaciers. The existence of the feature was known to United States Antarctic Service , 1939–41, Finn Ronne and C.R....

 toward the Wordie Ice Shelf

Wordie Ice Shelf

The Wordie Ice Shelf was a confluent glacier projecting as an ice shelf into the SE part of Marguerite Bay between Cape Berteaux and Mount Edgell, along the western coast of Antarctic Peninsula....

 area. The fourth, Weyerhaeuser Glacier

Weyerhaeuser Glacier

Weyerhaeuser Glacier is a large glacier flowing north into Mercator Ice Piedmont close west of Mobiloil Inlet, on the east coast of Antarctic Peninsula. This glacier lies in the area first explored from the air by Sir Hubert Wilkins in 1928 and Lincoln Ellsworth in 1935, but it was first clearly...

, trends southward toward Wakefield Highland

Wakefield Highland

Wakefield Highland is a snow-covered highland in central Antarctic Peninsula, bounded to the north by Hermes Glacier and the heads of Weyerhaeuser and Aphrodite Glaciers, to the west by the heads of Airy, Rotz and Seller Glaciers, to the south by Fleming Glacier and to the east by the heads of...

 and connects with glaciers leading westward to Wordie Ice Shelf. The fifth, Mercator Ice Piedmont

Mercator Ice Piedmont

Mercator Ice Piedmont is a gently-sloping ice piedmont at the head of Mobiloil Inlet, formed by the confluence of the Gibbs, Lammers, Cole and Weyerhaeuser Glaciers in eastern Graham Land. The feature was first photographed from the air by Lincoln Ellsworth in November 1935, and was plotted from...

, is nourished by the outflow from Weyerhaeuser, Cole and Gibbs Glacier

Gibbs Glacier

Gibbs Glacier is a glacier, 15 nautical miles long, flowing southeast into the north part of Mercator Ice Piedmont on the east side of Antarctic Peninsula. This feature together with Neny Glacier, which flows northwest, occupy a transverse depression between Mercator Ice Piedmont and Neny Fjord...

s; it broadens as it descends eastward to the head of Mobiloil Inlet. Discovered in 1940 by members of the East Base party of the United States Antarctic Service (USAS), 1939-41, who used this system of troughs in traveling across the upland, hence the name Traffic Circle.