[3] Mobiloil Inlet is near the east end of the Bowman Coast of Graham Land on the Antarctic Peninsula, opening onto the Weddell Sea to the north.

[1] Mobiloil Inlet was discovered by Sir Hubert Wilkins in a flight on December 20, 1928, and named by him after a product of the Vacuum Oil Company of Australia.

A gently-sloping ice piedmont at the head of Mobiloil Inlet, formed by the confluence of the Gibbs, Lammers, Cole and Weyerhaeuser Glaciers.

The feature was first photographed from the air by Lincoln Ellsworth in November 1935, and was plotted from these photos by W. L. G. Joerg as the lower end of a "major valley depression" along the coast.

A glacier-filled expanse 500 metres (1,600 ft) high, situated south of Mount Ptolemy and medially on the Antarctic Peninsula between Marguerite Bay and Mobiloil Inlet.

The fifth, Mercator Ice Piedmont, is nourished by the outflow from Weyerhaeuser, Cole and Gibbs Glaciers; 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.

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 delineated in aerial photographs taken by the USAS in 1940.

Named by UK-APC after Thomas Hubbard Sumner (1807–76), American sailor who, in 1837, introduced the position line method of navigation, since developed into standard practice at sea and in the air.

A glacier on the east side of Godfrey Upland, 11 nautical miles (20 km; 13 mi) long, flowing north-northeast into the Traffic Circle.

Large glacier flowing east along the north side of Godfrey Upland into the Traffic Circle and Mercator Ice Piedmont.

It was resighted in 1947 by the RARE under Finn Ronne, who named it for Lester Lammers, contributor of nine grown husky dogs and four puppies to the expedition.

A glacier, 15 nautical miles (28 km; 17 mi) long, flowing southeast into the north part of Mercator Ice Piedmont.

A well-defined escarpment, 11 nautical miles (20 km; 13 mi) long and rising to 1,525 metres (5,003 ft) high, forming part of the east flank of Weyerhaeuser Glacier.

Named by UK-APC after Richard Norwood (1590–1675), English mathematician who expounded the advantages of great-circle sailing and who, in 1635, measured an arc of meridian in order to improve the practice of navigation.

A peak rising to 1,525 metres (5,003 ft) high at the west side of the terminus of Sumner Glacier, 2 nautical miles (3.7 km; 2.3 mi) south-southeast of Mount Blunt.

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 radial pattern.

Discovered in 1940 by members of the East Base party of the United States Antarctic Service, 1939–41, who so named the nunatak because of its unique location in the Traffic Circle.